Well, you're going to have to check for null somewhere. You could do something like this:
from item in db.vw_Dropship_OrderItems
where (listStatus == null || listStatus.Contains(item.StatusCode))
&& (listMerchants == null || listMerchants.Contains(item.MerchantId))
select item;
Does not matter for inner joins
Matters for outer joins
a. WHERE
clause: After joining. Records will be filtered after join has taken place.
b. ON
clause - Before joining. Records (from right table) will be filtered before joining. This may end up as null in the result (since OUTER join).
Example: Consider the below tables:
1. documents:
| id | name |
--------|-------------|
| 1 | Document1 |
| 2 | Document2 |
| 3 | Document3 |
| 4 | Document4 |
| 5 | Document5 |
2. downloads:
| id | document_id | username |
|------|---------------|----------|
| 1 | 1 | sandeep |
| 2 | 1 | simi |
| 3 | 2 | sandeep |
| 4 | 2 | reya |
| 5 | 3 | simi |
a) Inside WHERE
clause:
SELECT documents.name, downloads.id
FROM documents
LEFT OUTER JOIN downloads
ON documents.id = downloads.document_id
WHERE username = 'sandeep'
For above query the intermediate join table will look like this.
| id(from documents) | name | id (from downloads) | document_id | username |
|--------------------|--------------|---------------------|-------------|----------|
| 1 | Document1 | 1 | 1 | sandeep |
| 1 | Document1 | 2 | 1 | simi |
| 2 | Document2 | 3 | 2 | sandeep |
| 2 | Document2 | 4 | 2 | reya |
| 3 | Document3 | 5 | 3 | simi |
| 4 | Document4 | NULL | NULL | NULL |
| 5 | Document5 | NULL | NULL | NULL |
After applying the `WHERE` clause and selecting the listed attributes, the result will be:
| name | id |
|--------------|----|
| Document1 | 1 |
| Document2 | 3 |
b) Inside JOIN
clause
SELECT documents.name, downloads.id
FROM documents
LEFT OUTER JOIN downloads
ON documents.id = downloads.document_id
AND username = 'sandeep'
For above query the intermediate join table will look like this.
| id(from documents) | name | id (from downloads) | document_id | username |
|--------------------|--------------|---------------------|-------------|----------|
| 1 | Document1 | 1 | 1 | sandeep |
| 2 | Document2 | 3 | 2 | sandeep |
| 3 | Document3 | NULL | NULL | NULL |
| 4 | Document4 | NULL | NULL | NULL |
| 5 | Document5 | NULL | NULL | NULL |
Notice how the rows in `documents` that did not match both the conditions are populated with `NULL` values.
After Selecting the listed attributes, the result will be:
| name | id |
|------------|------|
| Document1 | 1 |
| Document2 | 3 |
| Document3 | NULL |
| Document4 | NULL |
| Document5 | NULL |
If you don't want to pass the parameter when you don't want to search, then you should make the parameter optional instead of assuming that ''
and NULL
are the same thing.
ALTER PROCEDURE [dbo].[psProducts]
(
@SearchType varchar(50) = NULL
)
AS
BEGIN
SET NOCOUNT ON;
SELECT P.[ProductId]
,P.[ProductName]
,P.[ProductPrice]
,P.[Type]
FROM dbo.[Product] AS P
WHERE p.[Type] = COALESCE(NULLIF(@SearchType, ''), p.[Type]);
END
GO
Now if you pass NULL
, an empty string (''
), or leave out the parameter, the where clause will essentially be ignored.
you can do using
CAST
SELECT * from tbl where col1 = concat(cast(col1 as decimal), "")
First we should know the order of execution of Clauses i.e FROM > WHERE > GROUP BY > HAVING > DISTINCT > SELECT > ORDER BY. Since WHERE Clause gets executed before GROUP BY Clause the records cannot be filtered by applying WHERE to a GROUP BY applied records.
"HAVING is same as the WHERE clause but is applied on grouped records".
first the WHERE clause fetches the records based on the condition then the GROUP BY clause groups them accordingly and then the HAVING clause fetches the group records based on the having condition.
Try to change where Member class
public function users() {
return $this->hasOne('User');
}
return $this->belongsTo('User');
At least some versions of SQL (Oracle, Informix, DB2, ISO Standard) support:
WHERE MOD(value, 2) = 1
MySQL supports '%' as the modulus operator:
WHERE value % 2 = 1
WHERE id <> 2
should work fine...Is that what you are after?
Active record method or_where
is to be used:
$this->db->select("*")
->from("table_name")
->where("first", $first)
->or_where("second", $second);
Try this one -
WHERE DateDropped = 0
AND (
(ISNULL(@JobsOnHold, 0) = 1 AND DateAppr >= 0)
OR
(ISNULL(@JobsOnHold, 0) != 1 AND DateAppr != 0)
)
UPDATE users SET username='&username', password='&password' where id='&id'
This query will ask you to enter the username,password and id dynamically
It's not bad practice at all. They are usually referred as SUBQUERY, SUBSELECT or NESTED QUERY.
It's a relatively expensive operation, but it's quite common to encounter a lot of subqueries when dealing with databases since it's the only way to perform certain kind of operations on data.
From here.
the SQL standard requires that HAVING must reference only columns in the GROUP BY clause or columns used in aggregate functions
as opposed to the WHERE clause which is applied to database rows
It's not a cut and paste. The CASE
expression must return a value, and you are returning a string containing SQL (which is technically a value but of a wrong type). This is what you wanted to write, I think:
SELECT * FROM [Purchasing].[Vendor] WHERE
CASE
WHEN @url IS null OR @url = '' OR @url = 'ALL'
THEN PurchasingWebServiceURL LIKE '%'
WHEN @url = 'blank'
THEN PurchasingWebServiceURL = ''
WHEN @url = 'fail'
THEN PurchasingWebServiceURL NOT LIKE '%treyresearch%'
ELSE PurchasingWebServiceURL = '%' + @url + '%'
END
I also suspect that this might not work in some dialects, but can't test now (Oracle, I'm looking at you), due to not having booleans.
However, since @url
is not dependent on the table values, why not make three different queries, and choose which to evaluate based on your parameter?
INSERT
syntax cannot have WHERE
but you can use UPDATE
.
The syntax is as follows:
UPDATE table_name
SET column1 = value1, column2 = value2, ...
WHERE condition;
[OOT]
A bit OOT, but this question is the most closest topic with my question.
Here is an example if you want to show Event where ALL participant meet certain requirement. Let's say, event where ALL the participant has fully paid. So, it WILL NOT return events which having one or more participants that haven't fully paid .
Simply use the whereDoesntHave
of the others 2 statuses.
Let's say the statuses are haven't paid at all [eq:1], paid some of it [eq:2], and fully paid [eq:3]
Event::whereDoesntHave('participants', function ($query) {
return $query->whereRaw('payment = 1 or payment = 2');
})->get();
Tested on Laravel 5.8 - 7.x
You are using two WHERE
clauses but only one is allowed. Use it like this:
SELECT table1.f_id FROM table1
INNER JOIN table2 ON table2.f_id = table1.f_id
WHERE
table1.f_com_id = '430'
AND table1.f_status = 'Submitted'
AND table2.f_type = 'InProcess'
You need to put it in the join
clause, not the where
:
SELECT *
FROM categories
LEFT JOIN user_category_subscriptions ON
user_category_subscriptions.category_id = categories.category_id
and user_category_subscriptions.user_id =1
See, with an inner join
, putting a clause in the join
or the where
is equivalent. However, with an outer join
, they are vastly different.
As a join
condition, you specify the rowset that you will be joining to the table. This means that it evaluates user_id = 1
first, and takes the subset of user_category_subscriptions
with a user_id
of 1
to join to all of the rows in categories
. This will give you all of the rows in categories
, while only the categories
that this particular user has subscribed to will have any information in the user_category_subscriptions
columns. Of course, all other categories
will be populated with null
in the user_category_subscriptions
columns.
Conversely, a where
clause does the join, and then reduces the rowset. So, this does all of the joins and then eliminates all rows where user_id
doesn't equal 1
. You're left with an inefficient way to get an inner join
.
Hopefully this helps!
Since you are using an INNER JOIN you can just put the conditions in the WHERE clause, like this:
SELECT
p1.kArtikel,
p1.cName,
p1.cKurzBeschreibung,
p1.dLetzteAktualisierung,
p1.dErstellt,
p1.cSeo,
p2.kartikelpict,
p2.nNr,
p2.cPfad
FROM
tartikel AS p1 INNER JOIN tartikelpict AS p2
ON p1.kArtikel = p2.kArtikel
WHERE
DATE(dErstellt) > (NOW() - INTERVAL 7 DAY)
AND p2.nNr = 1
ORDER BY
p1.kArtikel DESC
LIMIT
100;
Use this: For example:
select * from ACCOUNTS_DETAILS
where ACCOUNT_ID=1001
union
select * from ACCOUNTS_DETAILS
where ACCOUNT_ID=1002
The top 2 answers (from Adam Robinson and Andrejs Cainikovs) are kinda, sorta correct, in that they do technically work, but their explanations are wrong and so could be misleading in many cases. For example, while the SQL_Latin1_General_CP1_CI_AS
collation will work in many cases, it should not be assumed to be the appropriate case-insensitive collation. In fact, given that the O.P. is working in a database with a case-sensitive (or possibly binary) collation, we know that the O.P. isn't using the collation that is the default for so many installations (especially any installed on an OS using US English as the language): SQL_Latin1_General_CP1_CI_AS
. Sure, the O.P. could be using SQL_Latin1_General_CP1_CS_AS
, but when working with VARCHAR
data, it is important to not change the code page as it could lead to data loss, and that is controlled by the locale / culture of the collation (i.e. Latin1_General vs French vs Hebrew etc). Please see point # 9 below.
The other four answers are wrong to varying degrees.
I will clarify all of the misunderstandings here so that readers can hopefully make the most appropriate / efficient choices.
Do not use UPPER()
. That is completely unnecessary extra work. Use a COLLATE
clause. A string comparison needs to be done in either case, but using UPPER()
also has to check, character by character, to see if there is an upper-case mapping, and then change it. And you need to do this on both sides. Adding COLLATE
simply directs the processing to generate the sort keys using a different set of rules than it was going to by default. Using COLLATE
is definitely more efficient (or "performant", if you like that word :) than using UPPER()
, as proven in this test script (on PasteBin).
There is also the issue noted by @Ceisc on @Danny's answer:
In some languages case conversions do not round-trip. i.e. LOWER(x) != LOWER(UPPER(x)).
The Turkish upper-case "I" is the common example.
No, collation is not a database-wide setting, at least not in this context. There is a database-level default collation, and it is used as the default for altered and newly created columns that do not specify the COLLATE
clause (which is likely where this common misconception comes from), but it does not impact queries directly unless you are comparing string literals and variables to other string literals and variables, or you are referencing database-level meta-data.
No, collation is not per query.
Collations are per predicate (i.e. something operand something) or expression, not per query. And this is true for the entire query, not just the WHERE
clause. This covers JOINs, GROUP BY, ORDER BY, PARTITION BY, etc.
No, do not convert to VARBINARY
(e.g.convert(varbinary, myField) = convert(varbinary, 'sOmeVal')
) for the following reasons:
_BIN2
if you are using SQL Server 2008 or newer, else you have no choice but to use one that ends with _BIN
. If the data is NVARCHAR
then it doesn't matter which locale you use as they are all the same in that case, hence Latin1_General_100_BIN2
always works. If the data is VARCHAR
, you must use the same locale that the data is currently in (e.g. Latin1_General
, French
, Japanese_XJIS
, etc) because the locale determines the code page that is used, and changing code pages can alter the data (i.e. data loss).CONVERT()
it will use the 30 default value. The danger is, if the string can be over 30 bytes, it will get silently truncated and you will likely get incorrect results from this predicate.No, LIKE
is not always case-sensitive. It uses the collation of the column being referenced, or the collation of the database if a variable is compared to a string literal, or the collation specified via the optional COLLATE
clause.
LCASE
is not a SQL Server function. It appears to be either Oracle or MySQL. Or possibly Visual Basic?
Since the context of the question is comparing a column to a string literal, neither the collation of the instance (often referred to as "server") nor the collation of the database have any direct impact here. Collations are stored per each column, and each column can have a different collation, and those collations don't need to be the same as the database's default collation or the instance's collation. Sure, the instance collation is the default for what a newly created database will use as its default collation if the COLLATE
clause wasn't specified when creating the database. And likewise, the database's default collation is what an altered or newly created column will use if the COLLATE
clause wasn't specified.
You should use the case-insensitive collation that is otherwise the same as the collation of the column. Use the following query to find the column's collation (change the table's name and schema name):
SELECT col.*
FROM sys.columns col
WHERE col.[object_id] = OBJECT_ID(N'dbo.TableName')
AND col.[collation_name] IS NOT NULL;
Then just change the _CS
to be _CI
. So, Latin1_General_100_CS_AS
would become Latin1_General_100_CI_AS
.
If the column is using a binary collation (ending in _BIN
or _BIN2
), then find a similar collation using the following query:
SELECT *
FROM sys.fn_helpcollations() col
WHERE col.[name] LIKE N'{CurrentCollationMinus"_BIN"}[_]CI[_]%';
For example, assuming the column is using Japanese_XJIS_100_BIN2
, do this:
SELECT *
FROM sys.fn_helpcollations() col
WHERE col.[name] LIKE N'Japanese_XJIS_100[_]CI[_]%';
For more info on collations, encodings, etc, please visit: Collations Info
I think that you are after this:
SELECT image_id
FROM list
WHERE (style_id, style_value) IN ((24,'red'),(25,'big'),(27,'round'))
GROUP BY image_id
HAVING count(distinct style_id, style_value)=3
You can't use AND, because values can't be 24 red
and 25 big
and 27 round
at the same time in the same row, but you need to check the presence of style_id, style_value
in multiple rows, under the same image_id
.
In this query I'm using IN (that, in this particular example, is equivalent to an OR), and I am counting the distinct rows that match. If 3 distinct rows match, it means that all 3 attributes are present for that image_id
, and my query will return it.
in this scenario:
DELETE FROM tableA
WHERE (SELECT q.entitynum
FROM tableA q
INNER JOIN tableB u on (u.qlabel = q.entityrole AND u.fieldnum = q.fieldnum)
WHERE (LENGTH(q.memotext) NOT IN (8,9,10)
OR q.memotext NOT LIKE '%/%/%')
AND (u.FldFormat = 'Date'));
aren't you missing the column you want to compare to? example:
DELETE FROM tableA
WHERE entitynum in (SELECT q.entitynum
FROM tableA q
INNER JOIN tableB u on (u.qlabel = q.entityrole AND u.fieldnum = q.fieldnum)
WHERE (LENGTH(q.memotext) NOT IN (8,9,10)
OR q.memotext NOT LIKE '%/%/%')
AND (u.FldFormat = 'Date'));
I assume it's that column since in your select statement you're selecting from the same table you're wanting to delete from with that column.
You can also use the PredicateBuilder from LinqKit to chain multiple typesafe lambda expressions using Or or And.
When making OUTER JOINs (ANSI-89 or ANSI-92), filtration location matters because criteria specified in the ON
clause is applied before the JOIN is made. Criteria against an OUTER JOINed table provided in the WHERE
clause is applied after the JOIN is made. This can produce very different result sets. In comparison, it doesn't matter for INNER JOINs if the criteria is provided in the ON
or WHERE
clauses -- the result will be the same.
SELECT s.*,
cs.`value`
FROM SETTINGS s
LEFT JOIN CHARACTER_SETTINGS cs ON cs.setting_id = s.id
AND cs.character_id = 1
You need to convert those to actual dates instead of strings, try this:
SELECT *
FROM <TABLENAME>
WHERE start_date BETWEEN TO_DATE('2010-01-15','YYYY-MM-DD') AND TO_DATE('2010-01-17', 'YYYY-MM-DD');
Edited to deal with format as specified:
SELECT *
FROM <TABLENAME>
WHERE start_date BETWEEN TO_DATE('15-JAN-10','DD-MON-YY') AND TO_DATE('17-JAN-10','DD-MON-YY');
Nto sure which RDBMS you are using, but if it is SQL Server you could look at rather using a CASE statement
Evaluates a list of conditions and returns one of multiple possible result expressions.
The CASE expression has two formats:
The simple CASE expression compares an expression to a set of simple expressions to determine the result.
The searched CASE expression evaluates a set of Boolean expressions to determine the result.
Both formats support an optional ELSE argument.
Having is only used with aggregation but where with non aggregation statements If you have where word put it before aggregation (group by)
You can write the where
clause as:
where (case when (:stateCode = '') then (1)
when (:stateCode != '') and (vw.state_cd in (:stateCode)) then 1
else 0)
end) = 1;
Alternatively, remove the case
entirely:
where (:stateCode = '') or
((:stateCode != '') and vw.state_cd in (:stateCode));
Or, even better:
where (:stateCode = '') or vw.state_cd in (:stateCode)
declare @T1 table(ID int, ReceivedDate datetime, [type] varchar(10))
declare @T2 table(ID int, ReceivedDate datetime, [type] varchar(10))
insert into @T1 values(1, '20010101', '1')
insert into @T1 values(2, '20010102', '1')
insert into @T1 values(3, '20010103', '1')
insert into @T2 values(10, '20010101', '2')
insert into @T2 values(20, '20010102', '2')
insert into @T2 values(30, '20010103', '2')
;with cte1 as
(
select *,
row_number() over(order by ReceivedDate desc) as rn
from @T1
where [type] = '1'
),
cte2 as
(
select *,
row_number() over(order by ReceivedDate desc) as rn
from @T2
where [type] = '2'
)
select *
from cte1
where rn <= 2
union all
select *
from cte2
where rn <= 2
The logging
module has everything you could want. It may seem excessive at first, but only use the parts you need. I'd recommend using logging.basicConfig
to toggle the logging level to stderr
and the simple log methods, debug
, info
, warning
, error
and critical
.
import logging, sys
logging.basicConfig(stream=sys.stderr, level=logging.DEBUG)
logging.debug('A debug message!')
logging.info('We processed %d records', len(processed_records))
I ended up using matplotlib :)
from mpl_toolkits.mplot3d import Axes3D
from matplotlib import cm
import matplotlib.pyplot as plt
import numpy as np
x = [1000,1000,1000,1000,1000,5000,5000,5000,5000,5000,10000,10000,10000,10000,10000]
y = [13,21,29,37,45,13,21,29,37,45,13,21,29,37,45]
z = [75.2,79.21,80.02,81.2,81.62,84.79,87.38,87.9,88.54,88.56,88.34,89.66,90.11,90.79,90.87]
fig = plt.figure()
ax = fig.gca(projection='3d')
ax.plot_trisurf(x, y, z, cmap=cm.jet, linewidth=0.2)
plt.show()
There's always the "brute force":
Search->File
Type the following in "Containing text" -> ^.*$
. Then check the "Regular Expression" checkbox
Type the following in "File name patterns" -> *.java
Click "Search"
Check the number of matches in the "Search" Tab.
If u want a direct/ quick away, without assing to variables:
{
urArray.map((prop, key) => {
console.log(emp);
return <Picker.Item label={emp.Name} value={emp.id} />;
})
}
JPanel testPanel = new JPanel();
testPanel.setLayout(new BoxLayout(testPanel, BoxLayout.Y_AXIS));
/*add variables here and add them to testPanel
e,g`enter code here`
testPanel.add(nameLabel);
testPanel.add(textName);
*/
testPanel.setVisible(true);
public static void main(String[] args) {
long a = 1111;
Long b = 1113L;
if(a == b.longValue())
{
System.out.println("Equals");
}else{
System.out.println("not equals");
}
}
or:
public static void main(String[] args) {
long a = 1111;
Long b = 1113L;
if(a == b)
{
System.out.println("Equals");
}else{
System.out.println("not equals");
}
}
>>> ','.join('{},{}'.format(i, i + 1) for i in range(1, 100, 4))
'1,2,5,6,9,10,13,14,17,18,21,22,25,26,29,30,33,34,37,38,41,42,45,46,49,50,53,54,57,58,61,62,65,66,69,70,73,74,77,78,81,82,85,86,89,90,93,94,97,98'
That was a quick and quite dirty solution.
Now, for a solution that is suitable for different kinds of progression problems:
def deltas():
while True:
yield 1
yield 3
def numbers(start, deltas, max):
i = start
while i <= max:
yield i
i += next(deltas)
print(','.join(str(i) for i in numbers(1, deltas(), 100)))
And here are similar ideas implemented using itertools:
from itertools import cycle, takewhile, accumulate, chain
def numbers(start, deltas, max):
deltas = cycle(deltas)
numbers = accumulate(chain([start], deltas))
return takewhile(lambda x: x <= max, numbers)
print(','.join(str(x) for x in numbers(1, [1, 3], 100)))
Use this
tvHide.setPaintFlags(tvHide.getPaintFlags() | Paint.UNDERLINE_TEXT_FLAG);
The latest version of Eclipse (Luna) and Spring Tool Suite (STS) come pre-packaged with support for Maven, GIT and Java 8.
C:\Users\xyz>python
Python 2.7.6 (default, Nov XY ..., 19:24:24) **[MSC v.1500 64 bit (AMD64)] on win
32**
Type "help", "copyright", "credits" or "license" for more information.
>>>
after hitting python in cmd
CREATE TABLE book (
id INT AUTO_INCREMENT primary key NOT NULL,
accepted_terms BIT(1) NOT NULL,
accepted_privacy BIT(1) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1
<form name="myForm">_x000D_
<input name="myText" type="text" ng-model="mytext" required/>_x000D_
<button ng-disabled="myForm.$pristine|| myForm.$invalid">Save</button>_x000D_
</form>
_x000D_
If you want to be a bit more strict
Be aware that Count() ignores null values, so if you need to allow for null as its own distinct value you can do something tricky like:
select count(distinct my_col)
+ count(distinct Case when my_col is null then 1 else null end)
from my_table
/
if the 2 structures variable are initialied with calloc or they are set with 0 by memset so you can compare your 2 structures with memcmp and there is no worry about structure garbage and this will allow you to earn time
Yet another approach.
The following is now possible thanks to the recent PHP 7 version.
$theStdClass = (object) [
'a' => 'Alpha',
'b' => 'Bravo',
'c' => 'Charlie',
'd' => 'Delta',
];
$foo = new class($theStdClass) {
public function __construct($data) {
if (!is_array($data)) {
$data = (array) $data;
}
foreach ($data as $prop => $value) {
$this->{$prop} = $value;
}
}
public function word4Letter($letter) {
return $this->{$letter};
}
};
print $foo->word4Letter('a') . PHP_EOL; // Alpha
print $foo->word4Letter('b') . PHP_EOL; // Bravo
print $foo->word4Letter('c') . PHP_EOL; // Charlie
print $foo->word4Letter('d') . PHP_EOL; // Delta
print $foo->word4Letter('e') . PHP_EOL; // PHP Notice: Undefined property
In this example, $foo is being initialized as an anonymous class that takes one array or stdClass as only parameter for the constructor.
Eventually, we loop through the each items contained in the passed object and dynamically assign then to an object's property.
To make this approch event more generic, you can write an interface or a Trait that you will implement in any class where you want to be able to cast an stdClass.
The issue here is that JSON, as a format, is generally parsed in full and then handled in-memory, which for such a large amount of data is clearly problematic.
The solution to this is to work with the data as a stream - reading part of the file, working with it, and then repeating.
The best option appears to be using something like ijson - a module that will work with JSON as a stream, rather than as a block file.
Edit: Also worth a look - kashif's comment about json-streamer
and Henrik Heino's comment about bigjson
.
I am surprised that no-one else has mentioned this so I am sharing in case none of the above help (my case).
What was happening was that an VBCSCompiler.exe instance was somehow stuck and was in fact not releasing the file handles to allow new instances to correctly write the new files and was causing the issue. This became apparent when I tried to delete the "bin" folder and it was complaining that another process was using files in there.
Closed VS, opened task manager, looked and terminated all VBCSCompiler instances and deleted the "bin" folder to get back to where I was.
In order to add attributes, XSL wants
<xsl:element name="img"> (attributes) </xsl:element>
instead of just
<img> (attributes) </img>
Although, yes, if you're just copying the element as-is, you don't need any of that.
Java does not have this control structure.
It should be noted though, that other languages do.
Python for example, has the while-else construct.
In Java's case, you can mimic this behaviour as you have already shown:
if (rowIndex >= dataColLinker.size()) {
do {
dataColLinker.add(value);
} while(rowIndex >= dataColLinker.size());
} else {
dataColLinker.set(rowIndex, value);
}
Also its working. In command form
cd C:\wamp\bin\mysql\mysql5.5.8\bin //hit enter
mysql -u -p databasename //-u=root,-p=blank
In fact you can use \input{filename}
and \include{filename}
which are latex commands,
directly in Pandoc
, because it supports nearly all html
and latex
syntax.
But beware, the included file will be treated as latex
file. But you can compile your markdown
to latex
with Pandox
easily.
I had to add a message box to my existing program. Most of the answers are overly complicated in this instance. For Linux on Ubuntu 16.04 (Python 2.7.12) with future proofing for Ubuntu 20.04 here is my code:
from __future__ import print_function # Must be first import
try:
import tkinter as tk
import tkinter.ttk as ttk
import tkinter.font as font
import tkinter.filedialog as filedialog
import tkinter.messagebox as messagebox
PYTHON_VER="3"
except ImportError: # Python 2
import Tkinter as tk
import ttk
import tkFont as font
import tkFileDialog as filedialog
import tkMessageBox as messagebox
PYTHON_VER="2"
Regardless of which Python version is being run, the code will always be messagebox.
for future proofing or backwards compatibility. I only needed to insert two lines into my existing code above.
''' At least one song must be selected '''
if self.play_song_count == 0:
messagebox.showinfo(title="No Songs Selected", \
message="You must select at least one song!", \
parent=self.toplevel)
return
I already had the code to return if song count was zero. So I only had to insert three lines in between existing code.
You can spare yourself complicated geometry code by using parent window reference instead:
parent=self.toplevel
Another advantage is if the parent window was moved after program startup your message box will still appear in the predictable place.
http://jsfiddle.net/8gfYZ/11/ Check here..
$(function(){
$('#check').click(function(){
if( $('#myButton').prop('disabled') ) {
alert('disabled');
$('#myButton').prop('disabled',false);
}
else {
alert('enabled');
$('#myButton').prop('disabled',true);
}
});
});
You could also use the php native funcion get_browser()
IMPORTANT NOTE: You should have a browscap.ini file.
Expanded from @SeaBrightSystems answer, you could try this:
$s1 = "textasstringwoohoo";
$arr = str_split($s1); //$arr now has character array
Click the gear in the Project tool window and then Always Select Opened File (previously Autoscroll From Source)
In case of multiple inheritance level, this function can be used as a super() method in other languages. Here is a demo fiddle, with some tests, you can use it like this, inside your method use : call_base(this, 'method_name', arguments);
It make use of quite recent ES functions, an compatibility with older browsers is not guarantee. Tested in IE11, FF29, CH35.
/**
* Call super method of the given object and method.
* This function create a temporary variable called "_call_base_reference",
* to inspect whole inheritance linage. It will be deleted at the end of inspection.
*
* Usage : Inside your method use call_base(this, 'method_name', arguments);
*
* @param {object} object The owner object of the method and inheritance linage
* @param {string} method The name of the super method to find.
* @param {array} args The calls arguments, basically use the "arguments" special variable.
* @returns {*} The data returned from the super method.
*/
function call_base(object, method, args) {
// We get base object, first time it will be passed object,
// but in case of multiple inheritance, it will be instance of parent objects.
var base = object.hasOwnProperty('_call_base_reference') ? object._call_base_reference : object,
// We get matching method, from current object,
// this is a reference to define super method.
object_current_method = base[method],
// Temp object wo receive method definition.
descriptor = null,
// We define super function after founding current position.
is_super = false,
// Contain output data.
output = null;
while (base !== undefined) {
// Get method info
descriptor = Object.getOwnPropertyDescriptor(base, method);
if (descriptor !== undefined) {
// We search for current object method to define inherited part of chain.
if (descriptor.value === object_current_method) {
// Further loops will be considered as inherited function.
is_super = true;
}
// We already have found current object method.
else if (is_super === true) {
// We need to pass original object to apply() as first argument,
// this allow to keep original instance definition along all method
// inheritance. But we also need to save reference to "base" who
// contain parent class, it will be used into this function startup
// to begin at the right chain position.
object._call_base_reference = base;
// Apply super method.
output = descriptor.value.apply(object, args);
// Property have been used into super function if another
// call_base() is launched. Reference is not useful anymore.
delete object._call_base_reference;
// Job is done.
return output;
}
}
// Iterate to the next parent inherited.
base = Object.getPrototypeOf(base);
}
}
Probably the best way to do it is using rake to write the tasks you need and the just execute it via command line.
You can see a very helpful video at railscasts
Also take a look at this other resources:
This doesn't necessarily address the question but if you are using Mac OS X then you can probably use lldb
LLDB Homepage . It's very similar to gdb
and even provides a guide to using commands that you would use on gdb
.
it looks like datetime.now()
is being evaluated when the model is defined, and not each time you add a record.
Django has a feature to accomplish what you are trying to do already:
date = models.DateTimeField(auto_now_add=True, blank=True)
or
date = models.DateTimeField(default=datetime.now, blank=True)
The difference between the second example and what you currently have is the lack of parentheses. By passing datetime.now
without the parentheses, you are passing the actual function, which will be called each time a record is added. If you pass it datetime.now()
, then you are just evaluating the function and passing it the return value.
More information is available at Django's model field reference
Try this:
<div>
<p onclick="startAnimation()">Start</p><!--O botão para iniciar (start)-->
<div id="animation">Hello!</div> <!--O elemento que você quer animar-->
</div>
<style>
@keyframes animationName {
from {margin-left:-30%;}
}
</style>
<script>
function startAnimation() {
document.getElementById("animation").style.animation = "animationName 2s linear 1";
}
</script>
Seems like you use Angular 4.3 version, I also faced with same problem. Use Angular 4.0.1 and post with code by @trichetricheand and it will work. I am also not sure how to solve it on Angular 4.3 :S
It flushes the internal buffer, which is supposed to cause the OS to write out the buffer to the file.[1] Python uses the OS's default buffering unless you configure it do otherwise.
But sometimes the OS still chooses not to cooperate. Especially with wonderful things like write-delays in Windows/NTFS. Basically the internal buffer is flushed, but the OS buffer is still holding on to it. So you have to tell the OS to write it to disk with os.fsync()
in those cases.
I don't have much time and your jsfidle did not work right now.
But maybe this will help you getting started.
First of all you should avoid to put css in your html tags. Like align="center"
.
Put stuff like that in your css since it is much clearer and won't deprecate that fast.
If you want to design responsive layouts you should use media queries wich were introduced in css3 and are supported very well by now.
Example css:
@media screen and (min-width: 100px) and (max-width: 199px)
{
.button
{
width: 25px;
}
}
@media screen and (min-width: 200px) and (max-width: 299px)
{
.button
{
width: 50px;
}
}
You can use any css you want inside a media query.
http://www.w3.org/TR/css3-mediaqueries/
If you are using VB.NET (or imported the dependency into your C# project), there actually exists a convenience method that allows to filter for multiple extensions:
Microsoft.VisualBasic.FileIO.FileSystem.GetFiles("C:\\path", Microsoft.VisualBasic.FileIO.SearchOption.SearchAllSubDirectories, new string[] {"*.mp3", "*.jpg"});
In VB.NET this can be accessed through the My-namespace:
My.Computer.FileSystem.GetFiles("C:\path", FileIO.SearchOption.SearchAllSubDirectories, {"*.mp3", "*.jpg"})
Unfortunately, these convenience methods don't support a lazily evaluated variant like Directory.EnumerateFiles()
does.
Take a look at ?legend
and try this:
legend('topright', names(a)[-1] ,
lty=1, col=c('red', 'blue', 'green',' brown'), bty='n', cex=.75)
For those who struggle with this error and git bash on Windows, just use PowerShell where -it
works perfectly.
Use OpenFileDialog.SafeFileName
OpenFileDialog.SafeFileName
Gets the file name and extension for the file selected in the dialog box. The file name does not include the path.
Put this in the <head>
section:
<link rel="icon" href="http://www.domain.com/favicon.ico" type="image/x-icon" />
<link rel="shortcut icon" href="http://www.domain.com/favicon.ico" type="image/x-icon" />
Keep the picture file named "favicon.ico". You'll have to look online to get a .ico file generator.
Go to node_modules/@vue/cli-service/lib/options.js
At the bottom inside the "devServer" unblock the codes
Now give your desired port number in the "port" :)
devServer: {
open: process.platform === 'darwin',
host: '0.0.0.0',
port: 3000, // default port 8080
https: false,
hotOnly: false,
proxy: null, // string | Object
before: app => {}
}
use: https://registry.npmjs.org/ Make sure you are trying to connect to:
if there is no error,try to clear cache
npm cache clean --force
then try
npm install
even you have any error
npm config set registry https://registry.npmjs.org/
then try
npm install -g @angular/cli
Faster is not an attribute of JSON or XML or a result that a comparison between those would yield. If any, then it is an attribute of the parsers or the bandwidth with which you transmit the data.
Here is (the beginning of) a list of advantages and disadvantages of JSON and XML:
Pro:
Con:
Simple syntax, only a handful of different data types are supported.
No support for comments.
Pro:
Con:
So in the end you have to decide what you need. Obviously both formats have their legitimate use cases. If you are mostly going to use JavaScript then you should go with JSON.
Please feel free to add pros and cons. I'm not an XML expert ;)
In Firefox, SpiderMonkey and Rhino you can wrap any code into an anonymous function and call its toSource
method, which will give you a nicely formatted source of the function.
toSource
also strips comments.
E. g.:
(function () { /* Say hello. */ var x = 'Hello!'; print(x); }).toSource()
Will be converted to a string:
function () {
var x = "Hello!";
print(x);
}
P. S.: It's not an "online tool", but all questions about general beautifying techniques are closed as duplicates of this one.
For me the solution was to change the bundle identifier by replacing the period separator to dashes. I changed com.mycompany.appname
to com-mycompany-appname
.
partials are incredibly useful.
For instance, in a 'pipe-lined' sequence of function calls (in which the returned value from one function is the argument passed to the next).
Sometimes a function in such a pipeline requires a single argument, but the function immediately upstream from it returns two values.
In this scenario, functools.partial
might allow you to keep this function pipeline intact.
Here's a specific, isolated example: suppose you want to sort some data by each data point's distance from some target:
# create some data
import random as RND
fnx = lambda: RND.randint(0, 10)
data = [ (fnx(), fnx()) for c in range(10) ]
target = (2, 4)
import math
def euclid_dist(v1, v2):
x1, y1 = v1
x2, y2 = v2
return math.sqrt((x2 - x1)**2 + (y2 - y1)**2)
To sort this data by distance from the target, what you would like to do of course is this:
data.sort(key=euclid_dist)
but you can't--the sort method's key parameter only accepts functions that take a single argument.
so re-write euclid_dist
as a function taking a single parameter:
from functools import partial
p_euclid_dist = partial(euclid_dist, target)
p_euclid_dist
now accepts a single argument,
>>> p_euclid_dist((3, 3))
1.4142135623730951
so now you can sort your data by passing in the partial function for the sort method's key argument:
data.sort(key=p_euclid_dist)
# verify that it works:
for p in data:
print(round(p_euclid_dist(p), 3))
1.0
2.236
2.236
3.606
4.243
5.0
5.831
6.325
7.071
8.602
Or for instance, one of the function's arguments changes in an outer loop but is fixed during iteration in the inner loop. By using a partial, you don't have to pass in the additional parameter during iteration of the inner loop, because the modified (partial) function doesn't require it.
>>> from functools import partial
>>> def fnx(a, b, c):
return a + b + c
>>> fnx(3, 4, 5)
12
create a partial function (using keyword arg)
>>> pfnx = partial(fnx, a=12)
>>> pfnx(b=4, c=5)
21
you can also create a partial function with a positional argument
>>> pfnx = partial(fnx, 12)
>>> pfnx(4, 5)
21
but this will throw (e.g., creating partial with keyword argument then calling using positional arguments)
>>> pfnx = partial(fnx, a=12)
>>> pfnx(4, 5)
Traceback (most recent call last):
File "<pyshell#80>", line 1, in <module>
pfnx(4, 5)
TypeError: fnx() got multiple values for keyword argument 'a'
another use case: writing distributed code using python's multiprocessing
library. A pool of processes is created using the Pool method:
>>> import multiprocessing as MP
>>> # create a process pool:
>>> ppool = MP.Pool()
Pool
has a map method, but it only takes a single iterable, so if you need to pass in a function with a longer parameter list, re-define the function as a partial, to fix all but one:
>>> ppool.map(pfnx, [4, 6, 7, 8])
They are probably using a virtual host (http://www.keanei.com/2011/07/14/creating-virtual-hosts-with-wamp/)
You can go into your Apache configuration file (httpd.conf) or your virtual host configuration file (recommended) and add something like:
<VirtualHost *:80>
DocumentRoot /www/ap-mispro
ServerName ap-mispro
# Other directives here
</VirtualHost>
And when you call up http://ap-mispro/
you would see whatever is in C:/wamp/www/ap-mispro (assuming default directory structure). The ServerName and DocumentRoot do no have to have the same name at all. Other factors needed to make this work:
http://ap-mispro
into your browser. This
change to your hosts file will only apply to your computer - not
that it sounds like you are trying from anyone else's.There are plenty more things to know about virtual hosts but this should get you started.
A one liner to give you just the needed details:
docker inspect `docker ps -aq` | jq '.[] | {Name: .Name, Mounts: .Mounts}' | less
search for the volume of complaint, you have the container name as well.
The HTML
<a href="#" id="btn">click</a>
And the javascript
// get a cross-browser function for adding events, place this in [global] or somewhere you can access it
var on = (function(){
if (window.addEventListener) {
return function(target, type, listener){
target.addEventListener(type, listener, false);
};
}
else {
return function(object, sEvent, fpNotify){
object.attachEvent("on" + sEvent, fpNotify);
};
}
}());
// find the element
var el = document.getElementById("btn");
// add the first listener
on(el, "click", function(){
alert("foo");
});
// add the second listener
on(el, "click", function(){
alert("bar");
});
This will alert both 'foo' and 'bar' when clicked.
calling a function is simple ..
myFunction();
so your code will be something like..
$(function(){
$('#elementID').click(function(){
myFuntion(); //this will call your function
});
});
$(function(){
$('#elementID').click( myFuntion );
});
or with some condition
if(something){
myFunction(); //this will call your function
}
Ran in to this problem a while ago. Website couldn't access video file on local PC due to security settings (understandable really) ONLY way I could get around it was to run a webserver on the local PC (server2Go) and all references to the video file from the web were to the localhost/video.mp4
<div id="videoDiv">
<video id="video" src="http://127.0.0.1:4001/videos/<?php $videoFileName?>" width="70%" controls>
</div>
<!--End videoDiv-->
Not an ideal solution but worked for me.
Putting my two cents here. I wanted to do the same without hardcoding the URL for my specific request. So i came up with this solution.
To append 'api'
to my baseURL, I have my default baseURL set as,
axios.defaults.baseURL = '/api/';
Then in my specific request, after explicitly setting the method and url, i set the baseURL to '/'
axios({
method:'post',
url:'logout',
baseURL: '/',
})
.then(response => {
window.location.reload();
})
.catch(error => {
console.log(error);
});
By default compiler tries to call parameterless constructor of base class.
In case if the base class doesn't have a parameterless constructor, you have to explicitly call it yourself:
public child(int i) : base(i){
Console.WriteLine("child");}
This will be possible with setiosflags(ios::showpoint).
From High Performance Android Apps book (page 157):
The fastest and simpleness way to do this task.
const N = Math.pow(8, 8)
let data = Array.from({length: N}, () => Math.floor(Math.random() * N))
let newData = {}
let len = data.length
// the magic
while (len--) {
newData[data[len]] = true
}
UPDATE: Please see Dylan's or d.c's anwer for a little easier (and more stable) solution, which does not rely on Chrome beeing installed in LocalAppData
!
Even if I agree with Daniel Hilgarth to open a new tab in chrome you just need to execute chrome.exe with your URL as the argument:
Process.Start(@"%AppData%\..\Local\Google\Chrome\Application\chrome.exe",
"http:\\www.YourUrl.com");
Python doesn't subscribe to the idea that exceptions should only be used for exceptional cases, in fact the idiom is 'ask for forgiveness, not permission'. This means that using exceptions as a routine part of your flow control is perfectly acceptable, and in fact, encouraged.
This is generally a good thing, as working this way helps avoid some issues (as an obvious example, race conditions are often avoided), and it tends to make code a little more readable.
Imagine you have a situation where you take some user input which needs to be processed, but have a default which is already processed. The try: ... except: ... else: ...
structure makes for very readable code:
try:
raw_value = int(input())
except ValueError:
value = some_processed_value
else: # no error occured
value = process_value(raw_value)
Compare to how it might work in other languages:
raw_value = input()
if valid_number(raw_value):
value = process_value(int(raw_value))
else:
value = some_processed_value
Note the advantages. There is no need to check the value is valid and parse it separately, they are done once. The code also follows a more logical progression, the main code path is first, followed by 'if it doesn't work, do this'.
The example is naturally a little contrived, but it shows there are cases for this structure.
The formula above didn't work for me, but I used this without any issue. Pass your current location to the function, and loop through an array of markers to find the closest:
function find_closest_marker( lat1, lon1 ) {
var pi = Math.PI;
var R = 6371; //equatorial radius
var distances = [];
var closest = -1;
for( i=0;i<markers.length; i++ ) {
var lat2 = markers[i].position.lat();
var lon2 = markers[i].position.lng();
var chLat = lat2-lat1;
var chLon = lon2-lon1;
var dLat = chLat*(pi/180);
var dLon = chLon*(pi/180);
var rLat1 = lat1*(pi/180);
var rLat2 = lat2*(pi/180);
var a = Math.sin(dLat/2) * Math.sin(dLat/2) +
Math.sin(dLon/2) * Math.sin(dLon/2) * Math.cos(rLat1) * Math.cos(rLat2);
var c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1-a));
var d = R * c;
distances[i] = d;
if ( closest == -1 || d < distances[closest] ) {
closest = i;
}
}
// (debug) The closest marker is:
console.log(markers[closest]);
}
printf() doesn't directly support that. Instead you have to make your own function.
Something like:
while (n) {
if (n & 1)
printf("1");
else
printf("0");
n >>= 1;
}
printf("\n");
The Underscore.js contrib library library has a function called snapshot that deep clones an object
snippet from the source:
snapshot: function(obj) {
if(obj == null || typeof(obj) != 'object') {
return obj;
}
var temp = new obj.constructor();
for(var key in obj) {
if (obj.hasOwnProperty(key)) {
temp[key] = _.snapshot(obj[key]);
}
}
return temp;
}
once the library is linked to your project, invoke the function simply using
_.snapshot(object);
From Symfony's Request class https://github.com/symfony/symfony/blob/1bd125ec4a01220878b3dbc3ec3156b073996af9/src/Symfony/Component/HttpFoundation/Request.php
const HEADER_FORWARDED = 'forwarded';
const HEADER_CLIENT_IP = 'client_ip';
const HEADER_CLIENT_HOST = 'client_host';
const HEADER_CLIENT_PROTO = 'client_proto';
const HEADER_CLIENT_PORT = 'client_port';
/**
* Names for headers that can be trusted when
* using trusted proxies.
*
* The FORWARDED header is the standard as of rfc7239.
*
* The other headers are non-standard, but widely used
* by popular reverse proxies (like Apache mod_proxy or Amazon EC2).
*/
protected static $trustedHeaders = array(
self::HEADER_FORWARDED => 'FORWARDED',
self::HEADER_CLIENT_IP => 'X_FORWARDED_FOR',
self::HEADER_CLIENT_HOST => 'X_FORWARDED_HOST',
self::HEADER_CLIENT_PROTO => 'X_FORWARDED_PROTO',
self::HEADER_CLIENT_PORT => 'X_FORWARDED_PORT',
);
/**
* Returns the client IP addresses.
*
* In the returned array the most trusted IP address is first, and the
* least trusted one last. The "real" client IP address is the last one,
* but this is also the least trusted one. Trusted proxies are stripped.
*
* Use this method carefully; you should use getClientIp() instead.
*
* @return array The client IP addresses
*
* @see getClientIp()
*/
public function getClientIps()
{
$clientIps = array();
$ip = $this->server->get('REMOTE_ADDR');
if (!$this->isFromTrustedProxy()) {
return array($ip);
}
if (self::$trustedHeaders[self::HEADER_FORWARDED] && $this->headers->has(self::$trustedHeaders[self::HEADER_FORWARDED])) {
$forwardedHeader = $this->headers->get(self::$trustedHeaders[self::HEADER_FORWARDED]);
preg_match_all('{(for)=("?\[?)([a-z0-9\.:_\-/]*)}', $forwardedHeader, $matches);
$clientIps = $matches[3];
} elseif (self::$trustedHeaders[self::HEADER_CLIENT_IP] && $this->headers->has(self::$trustedHeaders[self::HEADER_CLIENT_IP])) {
$clientIps = array_map('trim', explode(',', $this->headers->get(self::$trustedHeaders[self::HEADER_CLIENT_IP])));
}
$clientIps[] = $ip; // Complete the IP chain with the IP the request actually came from
$firstTrustedIp = null;
foreach ($clientIps as $key => $clientIp) {
// Remove port (unfortunately, it does happen)
if (preg_match('{((?:\d+\.){3}\d+)\:\d+}', $clientIp, $match)) {
$clientIps[$key] = $clientIp = $match[1];
}
if (!filter_var($clientIp, FILTER_VALIDATE_IP)) {
unset($clientIps[$key]);
}
if (IpUtils::checkIp($clientIp, self::$trustedProxies)) {
unset($clientIps[$key]);
// Fallback to this when the client IP falls into the range of trusted proxies
if (null === $firstTrustedIp) {
$firstTrustedIp = $clientIp;
}
}
}
// Now the IP chain contains only untrusted proxies and the client IP
return $clientIps ? array_reverse($clientIps) : array($firstTrustedIp);
}
I'm didn't totally follow, but to add an action listener, you just call addActionListener (from Abstract Button). If this doesn't totally answer your question, can you provide some more details?
I had the same problem, all you need to do is define classpath environment variable for tomcat, you can do it by adding a file, in my case C:\apache-tomcat-7.0.30\bin\setenv.bat
, containing:
set "CLASSPATH=%CLASSPATH%;%CATALINA_HOME%\lib\mysql-connector-java-5.1.14-bin.jar"
then code, in my case:
Class.forName("com.mysql.jdbc.Driver").newInstance();
conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/database_name", "root", "");
works fine.
[averagRatioArray addObject:[NSString stringWithFormat:@"When you respond Yes to %@ the average response to %@ was %0.02f",QString1,QString2,M1]];
[averagRatioArray addObject:[NSString stringWithFormat:@"When you respond No to %@ the average response to %@ was %0.02f",QString1,QString2,M0]];
UIFont *font2 = [UIFont fontWithName:@"Helvetica-Bold" size:15];
UIFont *font = [UIFont fontWithName:@"Helvetica-Bold" size:12];
NSMutableAttributedString *str=[[NSMutableAttributedString alloc] initWithString:[NSString stringWithFormat:@"When you respond Yes to %@ the average response to %@ was",QString1,QString2]];
[str addAttribute:NSFontAttributeName value:font range:NSMakeRange(0,[@"When you respond Yes to " length])];
[str addAttribute:NSFontAttributeName value:font2 range:NSMakeRange([@"When you respond Yes to " length],[QString1 length])];
[str addAttribute:NSFontAttributeName value:font range:NSMakeRange([QString1 length],[@" the average response to " length])];
[str addAttribute:NSFontAttributeName value:font2 range:NSMakeRange([@" the average response to " length],[QString2 length])];
[str addAttribute:NSFontAttributeName value:font range:NSMakeRange([QString2 length] ,[@" was" length])];
// [str addAttribute:NSFontAttributeName value:font2 range:NSMakeRange(49+[QString1 length]+[QString2 length] ,8)];
[averagRatioArray addObject:[NSString stringWithFormat:@"%@",str]];
instead of writing listb.pop[0]
write
listb.pop()[0]
^
|
If you use Android Studio .Open the SDK-Manager, checked "Show Package Details" you will find out "Android Wear ARM EABI v7a System Image" download it , success !
This is the initial database of the data source when you connect.
Edited for clarity:
If you have multiple databases in your SQL Server instance and you don't want to use the default database, you need some way to specify which one you are going to use.
To be honest, the comments accompanying the prototypes seem clear enough. Something like this should do the trick:
void compute_md5(char *str, unsigned char digest[16]) {
MD5Context ctx;
MD5Init(&ctx);
MD5Update(&ctx, str, strlen(str));
MD5Final(digest, &ctx);
}
where str
is a C string you want the hash of, and digest
is the resulting MD5 digest.
This code is supported in MVC4 onwards
@Html.EditorFor(model => model.userName, new { htmlAttributes = new { @class = "form-control", disabled = "disabled", @readonly = "readonly" } })
I know this question is old, but no one has mentioned a native solution yet. If you're not trying to support archaic browsers (which you shouldn't be at this point), you can use array.filter
:
var arr = [];_x000D_
arr.push({name:"k1", value:"abc"});_x000D_
arr.push({name:"k2", value:"hi"});_x000D_
arr.push({name:"k3", value:"oa"});_x000D_
_x000D_
var found = arr.filter(function(item) { return item.name === 'k1'; });_x000D_
_x000D_
console.log('found', found[0]);
_x000D_
Check the console.
_x000D_
You can see a list of supported browsers here.
In the future with ES6, you'll be able to use array.find.
If the path is a drive, a slash will also appear in the path, and this time the use will cause problems. To unify, the best solution is the following command.
Dim FileName As String = "MyFileName"
Dim MyPath1 As String = Application.StartupPath().TrimEnd("\") & "\" & FileName
Dim MyPath2 As String = My.Application.Info.DirectoryPath.TrimEnd("\") & "\" & FileName
If you want to set in imageview an image that is inside the mipmap dirs you can do it like this:
myImageView.setImageDrawable(getResources().getDrawable(R.mipmap.my_picture)
https://stackoverflow.com/a/46903870/4489222
To achieved this, there are simply two steps,
Step 1: Go to AndroidManifest.xml and in the add the parameter in tag - android:parentActivityName=".home.HomeActivity"
example :
<activity
android:name=".home.ActivityDetail"
android:parentActivityName=".home.HomeActivity"
android:screenOrientation="portrait" />
Step 2: in ActivityDetail add your action for previous page/activity
example :
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
onBackPressed();
return true;
}
return super.onOptionsItemSelected(item);}
}
i reached this question while trying to find all procedures which use a certain table
Oracle SQL Developer offers this capability, as pointed out in this article : https://www.thatjeffsmith.com/archive/2012/09/search-and-browse-database-objects-with-oracle-sql-developer/
From the View menu, choose Find DB Object. Choose a DB connection. Enter the name of the table. At Object Types, keep only functions, procedures and packages. At Code section, check All source lines.
jQuery solution:
$('input').on('change',function(){
$(this).get(0).value = '';
$(this).get(0).type = '';
$(this).get(0).type = 'file';
});
If the element is currently not visible on the page, you can use the native scrollIntoView()
method.
$('#div_' + element_id)[0].scrollIntoView( true );
Where true
means align to the top of the page, and false
is align to bottom.
Otherwise, there's a scrollTo()
plugin for jQuery you can use.
Or maybe just get the top
position()
(docs) of the element, and set the scrollTop()
(docs) to that position:
var top = $('#div_' + element_id).position().top;
$(window).scrollTop( top );
to increment by one you can do something like
var newValue = currentValue ++;
I can see that other responders have given you a complete solution. Problem with regexes is that they can be difficult to maintain/understand.
An easier solution would be to retain your existing regex, then create two new regexes to test for your "at least one alphabetic" and "at least one numeric".
So, test for this :-
/^([a-zA-Z0-9]+)$/
Then this :-
/\d/
Then this :-
/[A-Z]/i
If your string passes all three regexes, you have the answer you need.
I know this question has been answered, but just to point out what timeit
has to say about the solutions efficiency. Using these parameters:
size = 30
s = [str(random.randint(0, 9)) for i in range(size)] + (size/3) * ['-']
random.shuffle(s)
s = ''.join(['+'] + s)
timec = 1000
That is the "phone number" has 30 digits, 1 plus sing and 10 '-'. I've tested these approaches:
def justdigits(s):
justdigitsres = ""
for char in s:
if char.isdigit():
justdigitsres += str(char)
return justdigitsres
re_compiled = re.compile(r'\D')
print('Filter: %ss' % timeit.Timer(lambda : ''.join(filter(str.isdigit, s))).timeit(timec))
print('GE: %ss' % timeit.Timer(lambda : ''.join(n for n in s if n.isdigit())).timeit(timec))
print('LC: %ss' % timeit.Timer(lambda : ''.join([n for n in s if n.isdigit()])).timeit(timec))
print('For loop: %ss' % timeit.Timer(lambda : justdigits(s)).timeit(timec))
print('RE: %ss' % timeit.Timer(lambda : re.sub(r'\D', '', s)).timeit(timec))
print('REC: %ss' % timeit.Timer(lambda : re_compiled.sub('', s)).timeit(timec))
print('Translate: %ss' % timeit.Timer(lambda : s.translate(None, '+-')).timeit(timec))
And came out with these results:
Filter: 0.0145790576935s
GE: 0.0185861587524s
LC: 0.0151798725128s
For loop: 0.0242128372192s
RE: 0.0120108127594s
REC: 0.00868797302246s
Translate: 0.00118899345398s
Apparently GEs and LCs are still slower than a regex or a compiled regex. And apparently my CPython 2.6.6 didn't optimize the string addition that much. translate
appears to be the fastest (which is expected as the problem is stated as "ignore these two symbols", rather than "get these numbers" and I believe is quite low-level).
And for size = 100
:
Filter: 0.0357120037079s
GE: 0.0465779304504s
LC: 0.0428011417389s
For loop: 0.0733139514923s
RE: 0.0213229656219s
REC: 0.0103371143341s
Translate: 0.000978946685791s
And for size = 1000
:
Filter: 0.212141036987s
GE: 0.198996067047s
LC: 0.196880102158s
For loop: 0.365696907043s
RE: 0.0880808830261s
REC: 0.086804151535s
Translate: 0.00587010383606s
Another solution might look like this,
char arr[] = "mom";
std::cout << "hi " << std::string(arr);
which avoids using an extra variable.
Well, technically it's not possible to get :before
and :after
pseudo elements work on input
elements
From W3C:
12.1 The :before and :after pseudo-elements
Authors specify the style and location of generated content with the :before and :after pseudo-elements. As their names indicate, the :before and :after pseudo-elements specify the location of content before and after an element's document tree content. The 'content' property, in conjunction with these pseudo-elements, specifies what is inserted.
So I had a project where I had submit buttons in the form of input
tags and for some reason the other developers restricted me to use <button>
tags instead of the usual input submit buttons, so I came up with another solution, of wrapping the buttons inside a span
set to position: relative;
and then absolutely positioning the icon using :after
pseudo.
Note: The demo fiddle uses the content code for FontAwesome 3.2.1 so you may need to change the value of
content
property accordingly.
HTML
<span><input type="submit" value="Send" class="btn btn-default" /></span>
CSS
input[type="submit"] {
margin: 10px;
padding-right: 30px;
}
span {
position: relative;
}
span:after {
font-family: FontAwesome;
content: "\f004"; /* Value may need to be changed in newer version of font awesome*/
font-size: 13px;
position: absolute;
right: 20px;
top: 1px;
pointer-events: none;
}
Now here everything is self explanatory here, about one property i.e pointer-events: none;
, I've used that because on hovering over the :after
pseudo generated content, your button won't click, so using the value of none
will force the click action to go pass through that content.
From Mozilla Developer Network :
In addition to indicating that the element is not the target of mouse events, the value none instructs the mouse event to go "through" the element and target whatever is "underneath" that element instead.
Hover the heart font/icon Demo and see what happens if you DON'T use pointer-events: none;
public string GetCurrentYear()
{
string CurrentYear = DateTime.Now.Year.ToString();
return CurrentYear;
}
public string GetCurrentMonth()
{
string CurrentMonth = DateTime.Now.Month.ToString();
return CurrentMonth;
}
I had this same issue and started using user123444555621's answer. However, I also needed to add padding
and a border
to each li
, which that solution doesn't allow because each li
is a table-row
.
First, we use a counter
to replicate the ol
's numbers.
We then set display: table;
on each li
and display: table-cell
on the :before
to give us the indentation.
Finally, the tricky part. Since we aren't using a table layout for the whole ol
we need to ensure each :before
is the same width. We can use the ch
unit to roughly keep the width equal to the number of characters. In order to keep the widths uniform when the number of digits for the :before
's differ, we can implement quantity queries. Assuming you know your lists won't be 100 items or more, you only need one quantity query rule to tell :before
to change its width, but you can easily add more.
ol {_x000D_
counter-reset: ol-num;_x000D_
margin: 0;_x000D_
padding: 0;_x000D_
}_x000D_
_x000D_
ol li {_x000D_
counter-increment: ol-num;_x000D_
display: table;_x000D_
padding: 0.2em 0.4em;_x000D_
border-bottom: solid 1px gray;_x000D_
}_x000D_
_x000D_
ol li:before {_x000D_
content: counter(ol-num) ".";_x000D_
display: table-cell;_x000D_
width: 2ch; /* approximately two characters wide */_x000D_
padding-right: 0.4em;_x000D_
text-align: right;_x000D_
}_x000D_
_x000D_
/* two digits */_x000D_
ol li:nth-last-child(n+10):before,_x000D_
ol li:nth-last-child(n+10) ~ li:before {_x000D_
width: 3ch;_x000D_
}_x000D_
_x000D_
/* three digits */_x000D_
ol li:nth-last-child(n+100):before,_x000D_
ol li:nth-last-child(n+100) ~ li:before {_x000D_
width: 4ch;_x000D_
}
_x000D_
<ol>_x000D_
<li>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Consequuntur facere veniam saepe vel cumque, nobis quisquam! Velit maiores blanditiis cum in mollitia quas facere sint harum, officia laborum, amet vero!</li>_x000D_
<li>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Consequuntur facere veniam saepe vel cumque, nobis quisquam! Velit maiores blanditiis cum in mollitia quas facere sint harum, officia laborum, amet vero!</li>_x000D_
<li>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Consequuntur facere veniam saepe vel cumque, nobis quisquam! Velit maiores blanditiis cum in mollitia quas facere sint harum, officia laborum, amet vero!</li>_x000D_
<li>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Consequuntur facere veniam saepe vel cumque, nobis quisquam! Velit maiores blanditiis cum in mollitia quas facere sint harum, officia laborum, amet vero!</li>_x000D_
<li>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Consequuntur facere veniam saepe vel cumque, nobis quisquam! Velit maiores blanditiis cum in mollitia quas facere sint harum, officia laborum, amet vero!</li>_x000D_
<li>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Consequuntur facere veniam saepe vel cumque, nobis quisquam! Velit maiores blanditiis cum in mollitia quas facere sint harum, officia laborum, amet vero!</li>_x000D_
<li>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Consequuntur facere veniam saepe vel cumque, nobis quisquam! Velit maiores blanditiis cum in mollitia quas facere sint harum, officia laborum, amet vero!</li>_x000D_
<li>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Consequuntur facere veniam saepe vel cumque, nobis quisquam! Velit maiores blanditiis cum in mollitia quas facere sint harum, officia laborum, amet vero!</li>_x000D_
<li>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Consequuntur facere veniam saepe vel cumque, nobis quisquam! Velit maiores blanditiis cum in mollitia quas facere sint harum, officia laborum, amet vero!</li>_x000D_
<li>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Consequuntur facere veniam saepe vel cumque, nobis quisquam! Velit maiores blanditiis cum in mollitia quas facere sint harum, officia laborum, amet vero!</li>_x000D_
</ol>
_x000D_
In case you use jQuery you need to wait for $(window).load
, because the embedded SVG document might not be yet loaded at $(document).ready
$(window).load(function () {
//alert("Document loaded, including graphics and embedded documents (like SVG)");
var a = document.getElementById("alphasvg");
//get the inner DOM of alpha.svg
var svgDoc = a.contentDocument;
//get the inner element by id
var delta = svgDoc.getElementById("delta");
delta.addEventListener("mousedown", function(){ alert('hello world!')}, false);
});
Edit: use
<=
or>=
to count today's date.
This is the right answer for your code. Just use the strtotime() php function.
$paymentDate = date('Y-m-d');
$paymentDate=date('Y-m-d', strtotime($paymentDate));
//echo $paymentDate; // echos today!
$contractDateBegin = date('Y-m-d', strtotime("01/01/2001"));
$contractDateEnd = date('Y-m-d', strtotime("01/01/2012"));
if (($paymentDate >= $contractDateBegin) && ($paymentDate <= $contractDateEnd)){
echo "is between";
}else{
echo "NO GO!";
}
opencv has changed some functions and moved them to their opencv_contrib repo so you have to call the mentioned method with:
recognizer = cv2.face.createLBPHFaceRecognizer()
Note: You can see this issue about missing docs. Try using help function help(cv2.face.createLBPHFaceRecognizer)
for more details.
Just write:
<script>
var my_variable_name = "<?php echo $php_string; ?>";
</script>
Now it's available as a JavaScript variable by the name of my_variable_name
at any point below the above code.
In Visual Studio 2010 the key sequence CTRL+E, S will also toggle display of whitespace characters.
In response to @A.M.K's question about how to do transitions without jQuery. A very simple example I threw together. If I had time to think this through some more, I might be able to eliminate the JavaScript code altogether:
<style>
body {
background-color: red;
transition: background-color 2s ease-in;
}
</style>
<script>
window.onload = function() {
document.body.style.backgroundColor = '#00f';
}
</script>
<body>
<p>test</p>
</body>
You should be able to do this quite easily:
SELECT *
FROM WebPageContent
WHERE data.value('(/PageContent/Text)[1]', 'varchar(100)') LIKE 'XYZ%'
The .value
method gives you the actual value, and you can define that to be returned as a VARCHAR(), which you can then check with a LIKE statement.
Mind you, this isn't going to be awfully fast. So if you have certain fields in your XML that you need to inspect a lot, you could:
With this, you'd basically "extract" a certain portion of the XML into a computed field, make it persisted, and then you can search very efficiently on it (heck: you can even INDEX that field!).
Marc
If you're using NumPy/SciPy already you may as well use:
scipy.ndimage.imread(file_name, mode='L')
I just wanted to provide the most comprehensible solution, the anti code-golf version.
from itertools import combinations
l = ["x", "y", "z", ]
def powerset(items):
combo = []
for r in range(len(items) + 1):
#use a list to coerce a actual list from the combinations generator
combo.append(list(combinations(items,r)))
return combo
l_powerset = powerset(l)
for i, item in enumerate(l_powerset):
print "All sets of length ", i
print item
The results
All sets of length 0
[()]
All sets of length 1
[('x',), ('y',), ('z',)]
All sets of length 2
[('x', 'y'), ('x', 'z'), ('y', 'z')]
All sets of length 3
[('x', 'y', 'z')]
For more see the itertools docs, also the wikipedia entry on power sets
Apparently, you can now use NLog with Growl for Windows.
<?xml version="1.0" encoding="utf-8" ?>
<nlog xmlns="http://www.nlog-project.org/schemas/NLog.xsd"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<extensions>
<add assembly="NLog.Targets.GrowlNotify" />
</extensions>
<targets>
<target name="growl" type="GrowlNotify" password="" host="" port="" />
</targets>
<rules>
<logger name="*" minLevel="Trace" appendTo="growl"/>
</rules>
</nlog>
Let's try this way:
select
a.ip,
a.os,
a.hostname,
a.port,
a.protocol,
b.state
from a
left join b
on a.ip = b.ip
and a.port = b.port /*if you has to filter by columns from right table , then add this condition in ON clause*/
where a.somecolumn = somevalue /*if you have to filter by some column from left table, then add it to where condition*/
So, in where
clause you can filter result set by column from right table only on this way:
...
where b.somecolumn <> (=) null
In addition to the intuitive explanation Chris Smith has provided, we can consider why this is the case from a different perspective: considering undirected graphs.
To see why in a DIRECTED graph the answer is n*(n-1)
, consider an undirected graph (which simply means that if there is a link between two nodes (A and B) then you can go in both ways: from A to B and from B to A). The maximum number of edges in an undirected graph is n(n-1)/2
and obviously in a directed graph there are twice as many.
Good, you might ask, but why are there a maximum of n(n-1)/2
edges in an undirected graph?
For that, Consider n points (nodes) and ask how many edges can one make from the first point. Obviously, n-1
edges. Now how many edges can one draw from the second point, given that you connected the first point? Since the first and the second point are already connected, there are n-2
edges that can be done. And so on. So the sum of all edges is:
Sum = (n-1)+(n-2)+(n-3)+...+3+2+1
Since there are (n-1)
terms in the Sum, and the average of Sum in such a series is ((n-1)+1)/2
{(last + first)/2}, Sum = n(n-1)/2
Try Amateras. It is a very good plugin for generating UML diagrams including class diagram.
You can use array_walk
to apply your preg_match
function to each element of the array.
A bat file has no structure...it is how you would type it on the command line. So just open your favourite editor..copy the line of code you want to run..and save the file as whatever.bat or whatever.cmd
Quick and dirty fix
class MyData:
def __init__(string=None,list=None):
if string is not None:
#do stuff
elif list is not None:
#do other stuff
else:
#make data empty
Then you can call it with
MyData(astring)
MyData(None, alist)
MyData()
Have you tried using Html.fromHtml(source)?
I think that class is pretty liberal with respect to source quality (it uses TagSoup internally, which was designed with real-life, bad HTML in mind). It doesn't support all HTML tags though, but it does come with a handler you can implement to react on tags it doesn't understand.
Take a look at http://www.w3schools.com/jsref/jsref_obj_date.asp
There is a function UTC()
that returns the milliseconds from the unix epoch.
You can use the TelephonyManager to do this:
TelephonyManager t = (TelephonyManager)getSystemService(TELEPHONY_SERVICE);
String number = t.getLine1Number();
Have you used
<uses-permission android:name="android.permission.READ_PHONE_STATE"/>
When dealing with mocking lists and iterating them, I always use something like:
@Spy
private List<Object> parts = new ArrayList<>();
You put your image in resources folder and use follow code:
JButton btn = new JButton("");
btn.setIcon(new ImageIcon(Class.class.getResource("/resources/img.png")));
This line should get you the firebase FCM token.
String token = FirebaseInstanceId.getInstance().getToken();
Log.d("MYTAG", "This is your Firebase token" + token);
Do Log.d to print it out to the android monitor.
if you are using extracted tomcat then,
startup.sh
and shutdown.sh
are two script located in TOMCAT/bin/ to start and shutdown tomcat, You could use that
if tomcat is installed then
/etc/init.d/tomcat5.5 start
/etc/init.d/tomcat5.5 stop
/etc/init.d/tomcat5.5 restart
In vue 2, You can catch enter event with v-on:keyup.enter
check the documentation:
I leave a very simple example:
var vm = new Vue({_x000D_
el: '#app',_x000D_
data: {msg: ''},_x000D_
methods: {_x000D_
onEnter: function() {_x000D_
this.msg = 'on enter event';_x000D_
}_x000D_
}_x000D_
});
_x000D_
<script src="https://cdn.jsdelivr.net/npm/vue"></script>_x000D_
_x000D_
<div id="app">_x000D_
<input v-on:keyup.enter="onEnter" />_x000D_
<h1>{{ msg }}</h1>_x000D_
</div>
_x000D_
Good luck
There are 3 states for boolean in PG: true, false and unknown (null). Explained here: Postgres boolean datatype
Therefore you need only query for NOT TRUE:
SELECT * from table_name WHERE boolean_column IS NOT TRUE;
Basic difference is non static members are declared with out using the keyword 'static'
All the static members (both variables and methods) are referred with the help of class name. Hence the static members of class are also called as class reference members or class members..
In order to access the non static members of a class we should create reference variable . reference variable store an object..
If t
is a matrix, you need to use the element-wise multiplication or exponentiation. Note the dot.
x = exp( -t.^2 )
or
x = exp( -t.*t )
JavaScript
var el= document.querySelector('body');
console.log(el);
console.log('Empty : '+ isEmptyTag(el));
console.log('Having Children : '+ hasChildren(el));
function isEmptyTag(tag) {
return (tag.innerHTML.trim() === '') ? true : false ;
}
function hasChildren(tag) {
//return (tag.childElementCount !== 0) ? true : false ; // Not For IE
//return (tag.childNodes.length !== 0) ? true : false ; // Including Comments
return (tag.children.length !== 0) ? true : false ; // Only Elements
}
try using any of this!
document.getElementsByTagName('div')[0];
document.getElementsByClassName('topbar')[0];
document.querySelectorAll('div')[0];
document.querySelector('div'); // gets the first element.
?
A sha256 is 256 bits long -- as its name indicates.
Since sha256 returns a hexadecimal representation, 4 bits are enough to encode each character (instead of 8, like for ASCII), so 256 bits would represent 64 hex characters, therefore you need a varchar(64)
, or even a char(64)
, as the length is always the same, not varying at all.
And the demo :
$hash = hash('sha256', 'hello, world!');
var_dump($hash);
Will give you :
$ php temp.php
string(64) "68e656b251e67e8358bef8483ab0d51c6619f3e7a1a9f0e75838d41ff368f728"
i.e. a string with 64 characters.
April 11, 2019
None of the answers above solved my problem so I wanted to include a current solution (as of April 2019) for people using Ubuntu 18.04. This is how I solved the question above...
/usr/lib/Android/
Search for where the SDK is installed and the version. In my case it was here:
/usr/lib/Android/Sdk/build-tools/28.0.3
Note: that I am using version 28.0.3, your version may differ.
Add ANDROID_HOME
to the environment path. To do this, open /etc/environment with a text editor:
sudo nano /etc/environment
Add a line for ANDROID_HOME
for your specific version and path. In my case it was:
ANDROID_HOME="/usr/lib/Android/Sdk/build-tools/28.0.3"
Finally, source the updated environment with: source /etc/environment
Confirm this by trying: echo $ANDROID_HOME
in the terminal. You should get the path of your newly created variable.
One additionally note about sourcing, I did have to restart my computer for the VScode terminal to recognize my changes. After the restart, the environment was set and I haven't had any issues since.
Closing PHPStorm fixed the issue for me.
when you invoke a function , it is termed 'calling' a function . For eg , suppose you've defined a function that finds the average of two numbers like this-
def avgg(a,b) :
return (a+b)/2;
now, to call the function , you do like this .
x=avgg(4,6)
print x
value of x will be 5 .
If you have control over the request, you could set the content type to binary/octet-stream. This allows to query for parameters without consuming the input stream.
However, this might be specific to some application servers. I only tested tomcat, jetty seems to behave the same way according to https://stackoverflow.com/a/11434646/957103.
If you're using Python3.x input
will return a string,so you should use int
method to convert string to integer.
If the prompt argument is present, it is written to standard output without a trailing newline. The function then reads a line from input, converts it to a string (stripping a trailing newline), and returns that. When EOF is read, EOFError is raised.
By the way,it's a good way to use try
catch
if you want to convert string to int:
try:
i = int(s)
except ValueError as err:
pass
Hope this helps.
public class MainActivity extends AppCompatActivity {
WebView webview;
ProgressBar progressbar;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
webview = (WebView)findViewById(R.id.webview);
progressbar = (ProgressBar) findViewById(R.id.progressbar);
webview.getSettings().setJavaScriptEnabled(true);
String filename ="http://www3.nd.edu/~cpoellab/teaching/cse40816/android_tutorial.pdf";
webview.loadUrl("http://docs.google.com/gview?embedded=true&url=" + filename);
webview.setWebViewClient(new WebViewClient() {
public void onPageFinished(WebView view, String url) {
// do your stuff here
progressbar.setVisibility(View.GONE);
}
});
}
}
There is also another convention, used by many open source projects including Spring.
interface User {
}
class DefaultUser implements User {
}
class AnotherClassOfUser implements User {
}
I personally do not like the "I" prefix for the simple reason that its an optional convention. So if I adopt this does IIOPConnection mean an interface for IOPConnection? What if the class does not have the "I" prefix, do I then know its not an interface..the answer here is no, because conventions are not always followed, and policing them will create more work that the convention itself saves.
As you went through the tutorial you must have come across the section on migration, as this was one of the major changes in Django 1.7
Prior to Django 1.7, the syncdb command never made any change that had a chance to destroy data currently in the database. This meant that if you did syncdb for a model, then added a new row to the model (a new column, effectively), syncdb would not affect that change in the database.
So either you dropped that table by hand and then ran syncdb again (to recreate it from scratch, losing any data), or you manually entered the correct statements at the database to add only that column.
Then a project came along called south
which implemented migrations. This meant that there was a way to migrate forward (and reverse, undo) any changes to the database and preserve the integrity of data.
In Django 1.7, the functionality of south
was integrated directly into Django. When working with migrations, the process is a bit different.
models.py
(as normal).makemigrations
command. This command is smart enough to detect what has changed and will create a script to effect that change to your database.migrate
. This command applies all migrations in order.So your normal syncdb
is now a two-step process, python manage.py makemigrations
followed by python manage.py migrate
.
Now, on to your specific problem:
class Snippet(models.Model):
owner = models.ForeignKey('auth.User', related_name='snippets')
highlighted = models.TextField()
created = models.DateTimeField(auto_now_add=True)
title = models.CharField(max_length=100, blank=True, default='')
code = models.TextField()
linenos = models.BooleanField(default=False)
language = models.CharField(choices=LANGUAGE_CHOICES,
default='python',
max_length=100)
style = models.CharField(choices=STYLE_CHOICES,
default='friendly',
max_length=100)
In this model, you have two fields highlighted
and code
that is required (they cannot be null).
Had you added these fields from the start, there wouldn't be a problem because the table has no existing rows?
However, if the table has already been created and you add a field that cannot be null, you have to define a default value to provide for any existing rows - otherwise, the database will not accept your changes because they would violate the data integrity constraints.
This is what the command is prompting you about. You can tell Django to apply a default during migration, or you can give it a "blank" default highlighted = models.TextField(default='')
in the model itself.
I am dissatisfied with the previous two answers to create read only properties because the first solution allows the readonly attribute to be deleted and then set and doesn't block the __dict__
. The second solution could be worked around with testing - finding the value that equals what you set it two and changing it eventually.
Now, for the code.
def final(cls):
clss = cls
@classmethod
def __init_subclass__(cls, **kwargs):
raise TypeError("type '{}' is not an acceptable base type".format(clss.__name__))
cls.__init_subclass__ = __init_subclass__
return cls
def methoddefiner(cls, method_name):
for clss in cls.mro():
try:
getattr(clss, method_name)
return clss
except(AttributeError):
pass
return None
def readonlyattributes(*attrs):
"""Method to create readonly attributes in a class
Use as a decorator for a class. This function takes in unlimited
string arguments for names of readonly attributes and returns a
function to make the readonly attributes readonly.
The original class's __getattribute__, __setattr__, and __delattr__ methods
are redefined so avoid defining those methods in the decorated class
You may create setters and deleters for readonly attributes, however
if they are overwritten by the subclass, they lose access to the readonly
attributes.
Any method which sets or deletes a readonly attribute within
the class loses access if overwritten by the subclass besides the __new__
or __init__ constructors.
This decorator doesn't support subclassing of these classes
"""
def classrebuilder(cls):
def __getattribute__(self, name):
if name == '__dict__':
from types import MappingProxyType
return MappingProxyType(super(cls, self).__getattribute__('__dict__'))
return super(cls, self).__getattribute__(name)
def __setattr__(self, name, value):
if name == '__dict__' or name in attrs:
import inspect
stack = inspect.stack()
try:
the_class = stack[1][0].f_locals['self'].__class__
except(KeyError):
the_class = None
the_method = stack[1][0].f_code.co_name
if the_class != cls:
if methoddefiner(type(self), the_method) != cls:
raise AttributeError("Cannot set readonly attribute '{}'".format(name))
return super(cls, self).__setattr__(name, value)
def __delattr__(self, name):
if name == '__dict__' or name in attrs:
import inspect
stack = inspect.stack()
try:
the_class = stack[1][0].f_locals['self'].__class__
except(KeyError):
the_class = None
the_method = stack[1][0].f_code.co_name
if the_class != cls:
if methoddefiner(type(self), the_method) != cls:
raise AttributeError("Cannot delete readonly attribute '{}'".format(name))
return super(cls, self).__delattr__(name)
clss = cls
cls.__getattribute__ = __getattribute__
cls.__setattr__ = __setattr__
cls.__delattr__ = __delattr__
#This line will be moved when this algorithm will be compatible with inheritance
cls = final(cls)
return cls
return classrebuilder
def setreadonlyattributes(cls, *readonlyattrs):
return readonlyattributes(*readonlyattrs)(cls)
if __name__ == '__main__':
#test readonlyattributes only as an indpendent module
@readonlyattributes('readonlyfield')
class ReadonlyFieldClass(object):
def __init__(self, a, b):
#Prevent initalization of the internal, unmodified PrivateFieldClass
#External PrivateFieldClass can be initalized
self.readonlyfield = a
self.publicfield = b
attr = None
def main():
global attr
pfi = ReadonlyFieldClass('forbidden', 'changable')
###---test publicfield, ensure its mutable---###
try:
#get publicfield
print(pfi.publicfield)
print('__getattribute__ works')
#set publicfield
pfi.publicfield = 'mutable'
print('__setattr__ seems to work')
#get previously set publicfield
print(pfi.publicfield)
print('__setattr__ definitely works')
#delete publicfield
del pfi.publicfield
print('__delattr__ seems to work')
#get publicfield which was supposed to be deleted therefore should raise AttributeError
print(pfi.publlicfield)
#publicfield wasn't deleted, raise RuntimeError
raise RuntimeError('__delattr__ doesn\'t work')
except(AttributeError):
print('__delattr__ works')
try:
###---test readonly, make sure its readonly---###
#get readonlyfield
print(pfi.readonlyfield)
print('__getattribute__ works')
#set readonlyfield, should raise AttributeError
pfi.readonlyfield = 'readonly'
#apparently readonlyfield was set, notify user
raise RuntimeError('__setattr__ doesn\'t work')
except(AttributeError):
print('__setattr__ seems to work')
try:
#ensure readonlyfield wasn't set
print(pfi.readonlyfield)
print('__setattr__ works')
#delete readonlyfield
del pfi.readonlyfield
#readonlyfield was deleted, raise RuntimeError
raise RuntimeError('__delattr__ doesn\'t work')
except(AttributeError):
print('__delattr__ works')
try:
print("Dict testing")
print(pfi.__dict__, type(pfi.__dict__))
attr = pfi.readonlyfield
print(attr)
print("__getattribute__ works")
if pfi.readonlyfield != 'forbidden':
print(pfi.readonlyfield)
raise RuntimeError("__getattr__ doesn't work")
try:
pfi.__dict__ = {}
raise RuntimeError("__setattr__ doesn't work")
except(AttributeError):
print("__setattr__ works")
del pfi.__dict__
raise RuntimeError("__delattr__ doesn't work")
except(AttributeError):
print(pfi.__dict__)
print("__delattr__ works")
print("Basic things work")
main()
There is no point to making read only attributes except when your writing library code, code which is being distributed to others as code to use in order to enhance their programs, not code for any other purpose, like app development. The __dict__
problem is solved, because the __dict__
is now of the immutable types.MappingProxyType
, so attributes cannot be changed through the __dict__
. Setting or deleting __dict__
is also blocked. The only way to change read only properties is through changing the methods of the class itself.
Though I believe my solution is better than of the previous two, it could be improved. These are this code's weaknesses:
Doesn't allow adding to a method in a subclass which sets or deletes a readonly attribute. A method defined in a subclass is automatically barred from accessing a readonly attribute, even by calling the superclass' version of the method.
The class' readonly methods can be changed to defeat the read only restrictions.
However, there is not way without editing the class to set or delete a read only attribute. This isn't dependent on naming conventions, which is good because Python isn't so consistent with naming conventions. This provides a way to make read only attributes that cannot be changed with hidden loopholes without editing the class itself. Simply list the attributes to be read only when calling the decorator as arguments and they will become read only.
Credit to Brice's answer for getting the caller classes and methods.
I think the most correct way to get item position is
View.OnClickListener onClickListener = new View.OnClickListener() {
@Override public void onClick(View v) {
View view = v;
View parent = (View) v.getParent();
while (!(parent instanceof RecyclerView)){
view=parent;
parent = (View) parent.getParent();
}
int position = recyclerView.getChildAdapterPosition(view);
}
Because view, you click not always the root view of your row layout. If view is not a root one (e.g buttons), you will get Class cast exception. Thus at first we need to find the view, which is the a dirrect child of you reciclerview. Then, find position using recyclerView.getChildAdapterPosition(view);
If you do not have privilege for "Show Status" then, The best option is to, create two triggers and a new table which keeps the row count of your billion records table.
Example:
TableA >> Billion Records
TableB >> 1 Column and 1 Row
Whenever there is insert query on TableA(InsertTrigger), Increment the row value by 1 TableB
Whenever there is delete query on TableA(DeleteTrigger), Decrement the row value by 1 in TableB
Or about the best module I have found http://pypi.python.org/pypi/colorama
You can do smth like this for 1D arrays. Here we use int*& because we want our pointer to be changeable.
#include<algorithm> // for copy
void resize(int*& a, size_t& n)
{
size_t new_n = 2 * n;
int* new_a = new int[new_n];
copy(a, a + n, new_a);
delete[] a;
a = new_a;
n = new_n;
}
For 2D arrays:
#include<algorithm> // for copy
void resize(int**& a, size_t& n)
{
size_t new_n = 2 * n, i = 0;
int** new_a = new int* [new_n];
for (i = 0; i != new_n; ++i)
new_a[i] = new int[100];
for (i = 0; i != n; ++i)
{
copy(a[i], a[i] + 100, new_a[i]);
delete[] a[i];
}
delete[] a;
a = new_a;
n = new_n;
}
Invoking of 1D array:
void myfn(int*& a, size_t& n)
{
// do smth
resize(a, n);
}
Invoking of 2D array:
void myfn(int**& a, size_t& n)
{
// do smth
resize(a, n);
}
If you're using bindings you can do
val headerView = binding.navView.getHeaderView(0)
val headerBinding = NavDrawerHeaderBinding.bind(headerView)
headerBinding.textView.text = "Your text here"
In Python 2.*, by far the fastest approach is the .translate
method:
>>> x='aaa12333bb445bb54b5b52'
>>> import string
>>> all=string.maketrans('','')
>>> nodigs=all.translate(all, string.digits)
>>> x.translate(all, nodigs)
'1233344554552'
>>>
string.maketrans
makes a translation table (a string of length 256) which in this case is the same as ''.join(chr(x) for x in range(256))
(just faster to make;-). .translate
applies the translation table (which here is irrelevant since all
essentially means identity) AND deletes characters present in the second argument -- the key part.
.translate
works very differently on Unicode strings (and strings in Python 3 -- I do wish questions specified which major-release of Python is of interest!) -- not quite this simple, not quite this fast, though still quite usable.
Back to 2.*, the performance difference is impressive...:
$ python -mtimeit -s'import string; all=string.maketrans("", ""); nodig=all.translate(all, string.digits); x="aaa12333bb445bb54b5b52"' 'x.translate(all, nodig)'
1000000 loops, best of 3: 1.04 usec per loop
$ python -mtimeit -s'import re; x="aaa12333bb445bb54b5b52"' 're.sub(r"\D", "", x)'
100000 loops, best of 3: 7.9 usec per loop
Speeding things up by 7-8 times is hardly peanuts, so the translate
method is well worth knowing and using. The other popular non-RE approach...:
$ python -mtimeit -s'x="aaa12333bb445bb54b5b52"' '"".join(i for i in x if i.isdigit())'
100000 loops, best of 3: 11.5 usec per loop
is 50% slower than RE, so the .translate
approach beats it by over an order of magnitude.
In Python 3, or for Unicode, you need to pass .translate
a mapping (with ordinals, not characters directly, as keys) that returns None
for what you want to delete. Here's a convenient way to express this for deletion of "everything but" a few characters:
import string
class Del:
def __init__(self, keep=string.digits):
self.comp = dict((ord(c),c) for c in keep)
def __getitem__(self, k):
return self.comp.get(k)
DD = Del()
x='aaa12333bb445bb54b5b52'
x.translate(DD)
also emits '1233344554552'
. However, putting this in xx.py we have...:
$ python3.1 -mtimeit -s'import re; x="aaa12333bb445bb54b5b52"' 're.sub(r"\D", "", x)'
100000 loops, best of 3: 8.43 usec per loop
$ python3.1 -mtimeit -s'import xx; x="aaa12333bb445bb54b5b52"' 'x.translate(xx.DD)'
10000 loops, best of 3: 24.3 usec per loop
...which shows the performance advantage disappears, for this kind of "deletion" tasks, and becomes a performance decrease.
I disagree that .form-group should be within .col-*-n elements. In my experience, all the appropriate padding happens automatically when you use .form-group like .row within a form.
<div class="form-group">
<div class="col-sm-12">
<label for="user_login">Username</label>
<input class="form-control" id="user_login" name="user[login]" required="true" size="30" type="text" />
</div>
</div>
Check out this demo.
Altering the demo slightly by adding .form-horizontal to the form tag changes some of that padding.
<form action="#" method="post" class="form-horizontal">
Check out this demo.
When in doubt, inspect in Chrome or use Firebug in Firefox to figure out things like padding and margins. Using .row within the form fails in edsioufi's fiddle because .row uses negative left and right margins thereby drawing the horizontal bounds of the divs classed .row beyond the bounds of the containing fieldsets.
As the default configuration of Postgres, a user called postgres is made and the user postgres has full super admin access to entire PostgreSQL instance running on your OS.
sudo -u postgres psql
The above command gets you the psql command line interface in admin mode.
Creating user
sudo -u postgres createuser <username>
Creating Database
sudo -u postgres createdb <dbname>
NOTE: < > are not to be used while writing command, they are used just to signify the variables
Dave Delongs's Swift 2.0 answer was crashing for me (in iOS 9)
But this worked:
let fetchRequest = NSFetchRequest(entityName: "Car")
let deleteRequest = NSBatchDeleteRequest(fetchRequest: fetchRequest)
do {
try managedObjectContext.executeRequest(deleteRequest)
try managedObjectContext.save()
}
catch let error as NSError {
// Handle error
}
You can use text property in your xml file for particular Edittext fields. For example :
<EditText
android:id="@+id/ET_User"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="yourusername"/>
like this all Edittext fields contains text whatever u want,if user wants to change particular Edittext field he remove older text and enter his new text.
In Another way just you get the particular Edittext field id in activity class and set text to that one.
Another way = programmatically
Example:
EditText username=(EditText)findViewById(R.id.ET_User);
username.setText("jack");
Here's a novel method for detected when a URL has loaded by utilising Android's capability for JavaScript hooks. Using this pattern, we exploit JavaScript's knowledge of the document's state to generate a native method call within the Android runtime. These JavaScript-accessible calls can be made using the @JavaScriptInterface
annotation.
This implementation requires that we call setJavaScriptEnabled(true)
on the WebView
's settings, so it might not be suitable depending on your application's requirements, e.g. security concerns.
src/io/github/cawfree/webviewcallback/MainActivity.java (Jelly Bean, API Level 16)
package io.github.cawfree.webviewcallback;
/**
* Created by Alex Thomas (@Cawfree), 30/03/2017.
**/
import android.net.http.SslError;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.webkit.JavascriptInterface;
import android.webkit.SslErrorHandler;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Toast;
/** An Activity demonstrating how to introduce a callback mechanism into Android's WebView. */
public class MainActivity extends AppCompatActivity {
/* Static Declarations. */
private static final String HOOK_JS = "Android";
private static final String URL_TEST = "http://www.zonal.co.uk/";
private static final String URL_PREPARE_WEBVIEW = "";
/* Member Variables. */
private WebView mWebView = null;
/** Create the Activity. */
@Override protected final void onCreate(final Bundle pSavedInstanceState) {
// Initialize the parent definition.
super.onCreate(pSavedInstanceState);
// Set the Content View.
this.setContentView(R.layout.activity_main);
// Fetch the WebView.
this.mWebView = (WebView)this.findViewById(R.id.webView);
// Enable JavaScript.
this.getWebView().getSettings().setJavaScriptEnabled(true);
// Define the custom WebClient. (Here I'm just suppressing security errors, since older Android devices struggle with TLS.)
this.getWebView().setWebViewClient(new WebViewClient() { @Override public final void onReceivedSslError(final WebView pWebView, final SslErrorHandler pSslErrorHandler, final SslError pSslError) { pSslErrorHandler.proceed(); } });
// Define the WebView JavaScript hook.
this.getWebView().addJavascriptInterface(this, MainActivity.HOOK_JS);
// Make this initial call to prepare JavaScript execution.
this.getWebView().loadUrl(MainActivity.URL_PREPARE_WEBVIEW);
}
/** When the Activity is Resumed. */
@Override protected final void onPostResume() {
// Handle as usual.
super.onPostResume();
// Load the URL as usual.
this.getWebView().loadUrl(MainActivity.URL_TEST);
// Use JavaScript to embed a hook to Android's MainActivity. (The onExportPageLoaded() function implements the callback, whilst we add some tests for the state of the WebPage so as to infer when to export the event.)
this.getWebView().loadUrl("javascript:" + "function onExportPageLoaded() { " + MainActivity.HOOK_JS + ".onPageLoaded(); }" + "if(document.readyState === 'complete') { onExportPageLoaded(); } else { window.addEventListener('onload', function () { onExportPageLoaded(); }, false); }");
}
/** Javascript-accessible callback for declaring when a page has loaded. */
@JavascriptInterface @SuppressWarnings("unused") public final void onPageLoaded() {
// Display the Message.
Toast.makeText(this, "Page has loaded!", Toast.LENGTH_SHORT).show();
}
/* Getters. */
public final WebView getWebView() {
return this.mWebView;
}
}
res/layout/activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<WebView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/webView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
Essentially, we're appending an additional JavaScript function that is used to test the state of the document. If it's loaded, we launch a custom onPageLoaded()
event in Android's MainActivity
; otherwise, we register an event listener that updates Android once the page is ready, using window.addEventListener('onload', ...);
.
Since we're appending this script after the call to this.getWebView().loadURL("")
has been made, it's probable that we don't need to 'listen' for the events at all, since we only get a chance to append the JavaScript hook by making a successive call to loadURL
, once the page has already been loaded.
The method viewWillAppear
should be taken in the context of what is going on in your own application, and not in the context of your application being placed in the foreground when you switch back to it from another app.
In other words, if someone looks at another application or takes a phone call, then switches back to your app which was earlier on backgrounded, your UIViewController which was already visible when you left your app 'doesn't care' so to speak -- as far as it is concerned, it's never disappeared and it's still visible -- and so viewWillAppear
isn't called.
I recommend against calling the viewWillAppear
yourself -- it has a specific meaning which you shouldn't subvert! A refactoring you can do to achieve the same effect might be as follows:
- (void)viewWillAppear:(BOOL)animated {
[super viewWillAppear:animated];
[self doMyLayoutStuff:self];
}
- (void)doMyLayoutStuff:(id)sender {
// stuff
}
Then also you trigger doMyLayoutStuff
from the appropriate notification:
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(doMyLayoutStuff:) name:UIApplicationDidChangeStatusBarFrameNotification object:self];
There's no out of the box way to tell which is the 'current' UIViewController by the way. But you can find ways around that, e.g. there are delegate methods of UINavigationController for finding out when a UIViewController is presented therein. You could use such a thing to track the latest UIViewController which has been presented.
Update
If you layout out UIs with the appropriate autoresizing masks on the various bits, sometimes you don't even need to deal with the 'manual' laying out of your UI - it just gets dealt with...
Sorting in Mongoose has evolved over the releases such that some of these answers are no longer valid. As of the 4.1.x release of Mongoose, a descending sort on the date
field can be done in any of the following ways:
Room.find({}).sort('-date').exec((err, docs) => { ... });
Room.find({}).sort({date: -1}).exec((err, docs) => { ... });
Room.find({}).sort({date: 'desc'}).exec((err, docs) => { ... });
Room.find({}).sort({date: 'descending'}).exec((err, docs) => { ... });
Room.find({}).sort([['date', -1]]).exec((err, docs) => { ... });
Room.find({}, null, {sort: '-date'}, (err, docs) => { ... });
Room.find({}, null, {sort: {date: -1}}, (err, docs) => { ... });
For an ascending sort, omit the -
prefix on the string version or use values of 1
, asc
, or ascending
.
If you want to know how much numbers the array have, you want to know the array length. The function sizeof(var) in C gives you the bytes in the computer memory. So if you know the memory the int occupy you can do like this:
int arraylength(int array[]) {
return sizeof(array) / sizeof(int); // Size of the Array divided by the int size
}
There is a switch a^b/c
If you want to calculate
491 mod 12
then enter 491 press a^b/c then enter 12. Then you will get 40, 11, 12. Here the middle one will be the answer that is 11.
Similarly if you want to calculate 41 mod 12
then find 41 a^b/c 12. You will get 3, 5, 12 and the answer is 5 (the middle one). The mod
is always the middle value.
Command find_package
has two modes: Module
mode and Config
mode. You are trying to
use Module
mode when you actually need Config
mode.
Find<package>.cmake
file located within your project. Something like this:
CMakeLists.txt
cmake/FindFoo.cmake
cmake/FindBoo.cmake
CMakeLists.txt
content:
list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/cmake")
find_package(Foo REQUIRED) # FOO_INCLUDE_DIR, FOO_LIBRARIES
find_package(Boo REQUIRED) # BOO_INCLUDE_DIR, BOO_LIBRARIES
include_directories("${FOO_INCLUDE_DIR}")
include_directories("${BOO_INCLUDE_DIR}")
add_executable(Bar Bar.hpp Bar.cpp)
target_link_libraries(Bar ${FOO_LIBRARIES} ${BOO_LIBRARIES})
Note that CMAKE_MODULE_PATH
has high priority and may be usefull when you need to rewrite standard Find<package>.cmake
file.
<package>Config.cmake
file located outside and produced by install
command of other project (Foo
for example).
foo
library:
> cat CMakeLists.txt
cmake_minimum_required(VERSION 2.8)
project(Foo)
add_library(foo Foo.hpp Foo.cpp)
install(FILES Foo.hpp DESTINATION include)
install(TARGETS foo DESTINATION lib)
install(FILES FooConfig.cmake DESTINATION lib/cmake/Foo)
Simplified version of config file:
> cat FooConfig.cmake
add_library(foo STATIC IMPORTED)
find_library(FOO_LIBRARY_PATH foo HINTS "${CMAKE_CURRENT_LIST_DIR}/../../")
set_target_properties(foo PROPERTIES IMPORTED_LOCATION "${FOO_LIBRARY_PATH}")
By default project installed in CMAKE_INSTALL_PREFIX
directory:
> cmake -H. -B_builds
> cmake --build _builds --target install
-- Install configuration: ""
-- Installing: /usr/local/include/Foo.hpp
-- Installing: /usr/local/lib/libfoo.a
-- Installing: /usr/local/lib/cmake/Foo/FooConfig.cmake
Use find_package(... CONFIG)
to include FooConfig.cmake
with imported target foo
:
> cat CMakeLists.txt
cmake_minimum_required(VERSION 2.8)
project(Boo)
# import library target `foo`
find_package(Foo CONFIG REQUIRED)
add_executable(boo Boo.cpp Boo.hpp)
target_link_libraries(boo foo)
> cmake -H. -B_builds -DCMAKE_VERBOSE_MAKEFILE=ON
> cmake --build _builds
Linking CXX executable Boo
/usr/bin/c++ ... -o Boo /usr/local/lib/libfoo.a
Note that imported target is highly configurable. See my answer.
Update
You need to specify how you'll authenticate with the database. If you want to use integrated security (this means using Windows authentication using your local or domain Windows account), add this to the connection string:
Integrated Security = True;
If you want to use SQL Server authentication (meaning you specify a login and password rather than using a Windows account), add this:
User ID = "username"; Password = "password";
With pandas >= 1.0 there is now a dedicated string datatype:
1) You can convert your column to this pandas string datatype using .astype('string'):
df['zipcode'] = df['zipcode'].astype('string')
2) This is different from using str
which sets the pandas object datatype:
df['zipcode'] = df['zipcode'].astype(str)
3) For changing into categorical datatype use:
df['zipcode'] = df['zipcode'].astype('category')
You can see this difference in datatypes when you look at the info of the dataframe:
df = pd.DataFrame({
'zipcode_str': [90210, 90211] ,
'zipcode_string': [90210, 90211],
'zipcode_category': [90210, 90211],
})
df['zipcode_str'] = df['zipcode_str'].astype(str)
df['zipcode_string'] = df['zipcode_str'].astype('string')
df['zipcode_category'] = df['zipcode_category'].astype('category')
df.info()
# you can see that the first column has dtype object
# while the second column has the new dtype string
# the third column has dtype category
# Column Non-Null Count Dtype
--- ------ -------------- -----
0 zipcode_str 2 non-null object
1 zipcode_string 2 non-null string
2 zipcode_category 2 non-null category
dtypes: category(1), object(1), string(1)
The 'string' extension type solves several issues with object-dtype NumPy arrays:
You can accidentally store a mixture of strings and non-strings in an object dtype array. A StringArray can only store strings.
object dtype breaks dtype-specific operations like DataFrame.select_dtypes(). There isn’t a clear way to select just text while excluding non-text, but still object-dtype columns.
When reading code, the contents of an object dtype array is less clear than string.
More info on working with the new string datatype can be found here: https://pandas.pydata.org/pandas-docs/stable/user_guide/text.html
I had the same problem. I tried 'yyyy-mm-dd' format i.e. '2013-26-11' and got rid of this problem...
$this->validate($request,[
'input_field_name'=>'digits_between:2,5',
]);
Try this it will be work
I have created some extension methods (below) so you don't have to worry if an IQueryable is already ordered or not. If you want to order by multiple properties just do it as follows:
// We do not have to care if the queryable is already sorted or not.
// The order of the Smart* calls defines the order priority
queryable.SmartOrderBy(i => i.Property1).SmartOrderByDescending(i => i.Property2);
This is especially helpful if you create the ordering dynamically, f.e. from a list of properties to sort.
public static class IQueryableExtension
{
public static bool IsOrdered<T>(this IQueryable<T> queryable) {
if(queryable == null) {
throw new ArgumentNullException("queryable");
}
return queryable.Expression.Type == typeof(IOrderedQueryable<T>);
}
public static IQueryable<T> SmartOrderBy<T, TKey>(this IQueryable<T> queryable, Expression<Func<T, TKey>> keySelector) {
if(queryable.IsOrdered()) {
var orderedQuery = queryable as IOrderedQueryable<T>;
return orderedQuery.ThenBy(keySelector);
} else {
return queryable.OrderBy(keySelector);
}
}
public static IQueryable<T> SmartOrderByDescending<T, TKey>(this IQueryable<T> queryable, Expression<Func<T, TKey>> keySelector) {
if(queryable.IsOrdered()) {
var orderedQuery = queryable as IOrderedQueryable<T>;
return orderedQuery.ThenByDescending(keySelector);
} else {
return queryable.OrderByDescending(keySelector);
}
}
}
I stumbled over the same issue and found a nice solution which does not need any static ip configuration:
You can access a service via it's DNS name (as mentioned by you): servicename.namespace.svc.cluster.local
You can use that DNS name to reference it in another namespace via a local service:
kind: Service
apiVersion: v1
metadata:
name: service-y
namespace: namespace-a
spec:
type: ExternalName
externalName: service-x.namespace-b.svc.cluster.local
ports:
- port: 80
I solved a similar problem in a simple way:
git pull origin master
. Replace 'origin' with your Remote nameThat's all. I Solved the problem
Create a label on top of the select
<label class="hidden-label" for="IsActive"
*ngIf="filterIsActive == undefined">Placeholder text</label>
<select class="form-control form-control-sm" type="text" name="filterIsActive"
[(ngModel)]="filterIsActive" id="IsActive">
<option value="true">true</option>
<option value="false">false</option>
</select>
and apply CSS to place it on top
.hidden-label {
position: absolute;
margin-top: .34rem;
margin-left: .56rem;
font-style: italic;
pointer-events: none;
}
pointer-events: none
allows you to display the select when you click on the label, which is hidden when you select an option.
Updating from Kepler SR1 to Kepler SR2 solved this for me. I've just installed over the existing installation, so none of my settings were harmed.
Win8.1, 64bit
You're obviously not closing your file descriptors before opening new ones. Are you on windows or linux?
Think it that way, will be simpler
If you have 3 buttons and their weights are 1,3,1 accordingly, it will work like table in HTML
Provide 5 portions for that line: 1 portion for button 1, 3 portion for button 2 and 1 portion for button 1
Regard,
On MacOS, can try:
brew tap let-us-go/zkcli
brew install zkcli
zkcli ls /brokers/ids
zkcli get /brokers/ids/1
Your original file probably had no newline character.
However, some editors like gedit in linux silently adds newline at end of file. You cannot get rid of this message while using this kind of editors.
What I tried to overcome this issue is to open file with visual studio code editor
This editor clearly shows the last line and you can delete the line as you wish.
Because the type is unknown at run-time, I wrote code as follows to compare the unknown object, not against a type, but against an object of known type:
Here's the (interface-agnostic) code I use for the deep compare:
function assertTypeT<T>(loaded: any, wanted: T, optional?: Set<string>): T {
// this is called recursively to compare each element
function assertType(found: any, wanted: any, keyNames?: string): void {
if (typeof wanted !== typeof found) {
throw new Error(`assertType expected ${typeof wanted} but found ${typeof found}`);
}
switch (typeof wanted) {
case "boolean":
case "number":
case "string":
return; // primitive value type -- done checking
case "object":
break; // more to check
case "undefined":
case "symbol":
case "function":
default:
throw new Error(`assertType does not support ${typeof wanted}`);
}
if (Array.isArray(wanted)) {
if (!Array.isArray(found)) {
throw new Error(`assertType expected an array but found ${found}`);
}
if (wanted.length === 1) {
// assume we want a homogenous array with all elements the same type
for (const element of found) {
assertType(element, wanted[0]);
}
} else {
// assume we want a tuple
if (found.length !== wanted.length) {
throw new Error(
`assertType expected tuple length ${wanted.length} found ${found.length}`);
}
for (let i = 0; i < wanted.length; ++i) {
assertType(found[i], wanted[i]);
}
}
return;
}
for (const key in wanted) {
const expectedKey = keyNames ? keyNames + "." + key : key;
if (typeof found[key] === 'undefined') {
if (!optional || !optional.has(expectedKey)) {
throw new Error(`assertType expected key ${expectedKey}`);
}
} else {
assertType(found[key], wanted[key], expectedKey);
}
}
}
assertType(loaded, wanted);
return loaded as T;
}
Below is an example of how I use it.
In this example I expect the JSON contains an array of tuples, of which the second element is an instance of an interface called User
(which has two optional elements).
TypeScript's type-checking will ensure that my sample object is correct, then the assertTypeT function checks that the unknown (loaded from JSON) object matches the sample object.
export function loadUsers(): Map<number, User> {
const found = require("./users.json");
const sample: [number, User] = [
49942,
{
"name": "ChrisW",
"email": "[email protected]",
"gravatarHash": "75bfdecf63c3495489123fe9c0b833e1",
"profile": {
"location": "Normandy",
"aboutMe": "I wrote this!\n\nFurther details are to be supplied ..."
},
"favourites": []
}
];
const optional: Set<string> = new Set<string>(["profile.aboutMe", "profile.location"]);
const loaded: [number, User][] = assertTypeT(found, [sample], optional);
return new Map<number, User>(loaded);
}
You could invoke a check like this in the implementation of a user-defined type guard.
According to the official documentation on sitemaps.org it needs to be a full URL:
You can specify the location of the Sitemap using a robots.txt file. To do this, simply add the following line including the full URL to the sitemap:
Sitemap: http://www.example.com/sitemap.xml
Use following layerlist
:
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item>
<shape android:shape="rectangle" android:padding="10dp">
<corners
android:bottomRightRadius="5dp"
android:bottomLeftRadius="5dp"
android:topLeftRadius="5dp"
android:topRightRadius="5dp"/>
</shape>
</item>
<item android:drawable="@drawable/image_name_here" />
</layer-list>
%md
### <span style="color:red">text</span>
Wouldn't this work?
$ad->getcodes()->distinct()->get(['pid'])->count();
See here for discussion..
this is how you do it with ActionLIstener
import java.awt.FlowLayout;
import java.awt.event.*;
import javax.swing.*;
public class MyWind extends JFrame{
public MyWind() {
initialize();
}
private void initialize() {
setSize(300, 300);
setLayout(new FlowLayout(FlowLayout.LEFT));
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
final JTextField field = new JTextField();
field.setSize(200, 50);
field.setText(" ");
JComboBox comboBox = new JComboBox();
comboBox.setEditable(true);
comboBox.addItem("item1");
comboBox.addItem("item2");
//
// Create an ActionListener for the JComboBox component.
//
comboBox.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent event) {
//
// Get the source of the component, which is our combo
// box.
//
JComboBox comboBox = (JComboBox) event.getSource();
Object selected = comboBox.getSelectedItem();
if(selected.toString().equals("item1"))
field.setText("30");
else if(selected.toString().equals("item2"))
field.setText("40");
}
});
getContentPane().add(comboBox);
getContentPane().add(field);
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
new MyWind().setVisible(true);
}
});
}
}
VBScript's While
loops don't support early exit. Use the Do
loop for that:
num = 0
do while (num < 10)
if (status = "Fail") then exit do
num = num + 1
loop
To do this without any headache:
git status
, let's say branch "development".git clone
the project from repository.git checkout development
.rsync
, excluding .git folder: rsync -azv --exclude '.git' gitrepo1 newrepo/gitrepo1
. You don't have to do this with rsync
of course, but it does it so smooth.The benefit of this approach: you are good to continue exactly where you left off: your older branch, unstaged changes, etc.
If you are looking for tools like the the mysql and mysqldump command line client for Windows for versions around mysql Ver 14.14 Distrib 5.6.13, for Win32 (x86) it seems to be in HOMEDRIVE:\Program Files (x86)\MySQL\MySQL Workbench version
This directory is also not placed in the path by default so you will need to add it to your PATH environment variable before you can easily run it from the command prompt.
Also, there is a mysql utilities console but it does not work for my needs. Below is a list of the capabilities on the mysql utilities console in case it works for you:
Utility Description ---------------- --------------------------------------------------------- mysqlauditadmin audit log maintenance utility mysqlauditgrep audit log search utility mysqldbcompare compare databases for consistency mysqldbcopy copy databases from one server to another mysqldbexport export metadata and data from databases mysqldbimport import metadata and data from files mysqldiff compare object definitions among objects where the difference is how db1.obj1 differs from db2.obj2 mysqldiskusage show disk usage for databases mysqlfailover automatic replication health monitoring and failover mysqlfrm show CREATE TABLE from .frm files mysqlindexcheck check for duplicate or redundant indexes mysqlmetagrep search metadata mysqlprocgrep search process information mysqlreplicate establish replication with a master mysqlrpladmin administration utility for MySQL replication mysqlrplcheck check replication mysqlrplshow show slaves attached to a master mysqlserverclone start another instance of a running server mysqlserverinfo show server information mysqluserclone clone a MySQL user account to one or more new users
Typically this is bad practice. Since it is possible to call addEdge before addNode and have a NullPointerException (NPE) thrown, addEdge should check if the result is null and throw a more descriptive Exception. In my opinion, the only time it is acceptable not to check for nulls is when you expect the result to never be null, in which case, an NPE is plenty descriptive.
I am sorry, I forget to answer this question. After few days of googling I found, that problem was caused by hyperthreading (or hyper - v). I decided to edit my boot.ini file with option to start up windows with hyperthreading turned off. I followed this tutorial and now everything works perfect
First trim the trailing backslash (/) from the URL. For example, If the URL is http://www.google.com/ then the resultant URL will be http://www.google.com
$url= trim($url, '/');
If scheme not included in the URL, then prepend it. So for example if the URL is www.google.com then the resultant URL will be http://www.google.com
if (!preg_match('#^http(s)?://#', $url)) {
$url = 'http://' . $url;
}
Get the parts of the URL.
$urlParts = parse_url($url);
Now remove www. from the URL
$domain = preg_replace('/^www\./', '', $urlParts['host']);
Your final domain without http and www is now stored in $domain variable.
Examples:
http://www.google.com => google.com
https://www.google.com => google.com
www.google.com => google.com
http://google.com => google.com
SELECT some_cols
FROM prefix_users
WHERE (some conditions)
ORDER BY pic_set DESC, last_activity;
It might be cleaner to take out your inline click handler and do it like this:
$(document).ready(function() {
$('#button-id').click(function() {
foo($('#formValueId').val());
});
});
I had the same problem and solved it by using the default woocommerce hook to display the product image.
while ( $loop->have_posts() ) : $loop->the_post();
echo woocommerce_get_product_thumbnail('woocommerce_full_size');
endwhile;
Available parameters:
Xcode 6.3 didn't see my iPhone running iOS 8.3 even after a computer restart. I then restarted my iPhone and everything worked again. Love buggy software!
CultureInfo.CurrentCulture.TextInfo.ToTitleCase("hello world");
#include <map>
using namespace std;
struct A{
static map<int,int> create_map()
{
map<int,int> m;
m[1] = 2;
m[3] = 4;
m[5] = 6;
return m;
}
static const map<int,int> myMap;
};
const map<int,int> A:: myMap = A::create_map();
int main() {
}
[EDIT: this was a stupid suggestion from a time I did not know Vim well enough. Please don't use tabs instead of buffers; tabs are Vim's "window layouts"]
Maybe switch to using tabs?
vim -p a/*.php
opens the same files in tabs
gt
and gT
switch tabs back and forth
:q
closes only the current tab
:qa
closes everything and exits
:tabo
closes everything but the current tab
In newer versions of OS X (especially Yosemite, EL Capitan), Apple has removed Java support for security reasons. To fix this you have to do the following.
Mount the disk image file and install Java 6 runtime for OS X.
After this you should not be seeing any of the below messages:
- Unable to find any JVMs matching version "(null)"
- No Java runtime present, try --request to install.
This (from here) worked for me:
git checkout aq
git pull origin master
...
git push
Quoting:
git pull origin master
fetches and merges the contents of the master branch with your branch and creates a merge commit. If there are any merge conflicts you'll be notified at this stage and you must resolve the merge commits before proceeding. When you are ready to push your local commits, including your new merge commit, to the remote server, rungit push
.
I wanted something pretty close to this - the moment a user picks an item, even by just hitting the arrow keys to one (focus), I want that data item attached to the tag in question. When they type again without picking another item, I want that data cleared.
(function() {
var lastText = '';
$('#MyTextBox'), {
source: MyData
})
.on('autocompleteselect autocompletefocus', function(ev, ui) {
lastText = ui.item.label;
jqTag.data('autocomplete-item', ui.item);
})
.keyup(function(ev) {
if (lastText != jqTag.val()) {
// Clear when they stop typing
jqTag.data('autocomplete-item', null);
// Pass the event on as autocompleteclear so callers can listen for select/clear
var clearEv = $.extend({}, ev, { type: 'autocompleteclear' });
return jqTag.trigger(clearEv);
});
})();
With this in place, 'autocompleteselect' and 'autocompletefocus' still fire right when you expect, but the full data item that was selected is always available right on the tag as a result. 'autocompleteclear' now fires when that selection is cleared, generally by typing something else.
The main differences between github and gists are in terms of number of features and user interface:
One is designed with a great number of features and flexibility in mind, which is a good fit for both small and very big projects, while gists are only a good fit for very small projects.
For example, gists do support multi-files, but the interface is very simple, and they're limited in features, so they don't even have a file browser, nor issues, pull requests or wiki. If you dont need to have that, gists are very nice and more discrete. Like the comments, instead of answers, in SO.
Note: Thanks to @Qwerty for the suggestion of making my comment a real answer.
you need to put a textvariable in it, so you can use set()
and get()
method :
var=StringVar()
x= Entry (root,textvariable=var)
It simple with apply function in R
f <- apply(f,2,toupper)
No need to check if the column is character or any other type.
This is actually possible to do with Object.create
. It will not work for "non defined" properties. But for the ones that has been given a default value.
var defaults = {
a: 'test1',
b: 'test2'
};
Then when you create your properties object you do it with Object.create
properties = Object.create(defaults);
Now you will have two object where the first object is empty, but the prototype points to the defaults
object. To test:
console.log('Unchanged', properties);
properties.a = 'updated';
console.log('Updated', properties);
console.log('Defaults', Object.getPrototypeOf(properties));
One can make calls by using Bootstrap. The current version does not has any source update issues Trouble updating Bootstrap's typeahead data-source with post response , i.e. the source of bootstrap once updated can be again modified.
Please refer to below for an example:
jQuery('#help').typeahead({
source : function(query, process) {
jQuery.ajax({
url : "urltobefetched",
type : 'GET',
data : {
"query" : query
},
dataType : 'json',
success : function(json) {
process(json);
}
});
},
minLength : 1,
});
For any number validation you have to use different different range validation as per your requirements :
For Integer
[Range(0, int.MaxValue, ErrorMessage = "Please enter valid integer Number")]
for float
[Range(0, float.MaxValue, ErrorMessage = "Please enter valid float Number")]
for double
[Range(0, double.MaxValue, ErrorMessage = "Please enter valid doubleNumber")]
str.replace()
v2|v3 does not recognize regular expressions.
To perform a substitution using a regular expression, use re.sub()
v2|v3.
For example:
import re
line = re.sub(
r"(?i)^.*interfaceOpDataFile.*$",
"interfaceOpDataFile %s" % fileIn,
line
)
In a loop, it would be better to compile the regular expression first:
import re
regex = re.compile(r"^.*interfaceOpDataFile.*$", re.IGNORECASE)
for line in some_file:
line = regex.sub("interfaceOpDataFile %s" % fileIn, line)
# do something with the updated line
You can also add hash when page is loading:
location.hash = "noBack";
Then just handle location hash change to add another hash:
$(window).on('hashchange', function() {
location.hash = "noBack";
});
That makes hash always present and back button tries to remove hash at first. Hash is then added again by "hashchange" handler - so page would never actually can be changed to previous one.
I also used bcp and found a couple other helpful posts that would benefit others if finding this thread
Don't use VARCHAR(MAX)
as your @sql
or @cmd
variable for xp_cmdshell; you will get and error
Msg 214, Level 16, State 201, Procedure xp_cmdshell, Line 1 Procedure expects parameter 'command_string' of type 'varchar'.
http://www.sqlservercentral.com/Forums/Topic1071530-338-1.aspx
Use NULLIF
to get blanks for the csv file instead of a NUL
(viewable in hex editor, or notepad++). I used that in the SELECT
statement for bcp
How to make Microsoft BCP export empty string instead of a NUL char?
Instead of defining the width, you could just put a margin-left on your li, so that the spacing is consistent, and just make sure the margin(s)+li fit within 900px.
nav li {
line-height: 87px;
float: left;
text-align: center;
margin-left: 35px;
}
Hope this helps.
I must cautiously doubt the previously accepted answer that using a DialogFragment is the best option. The intended (primary) purpose of the DialogFragment seems to be to display fragments that are dialogs themselves, not to display fragments that have dialogs to display.
I believe that using the fragment's activity to mediate between the dialog and the fragment is the preferable option.
Use the axis
argument:
>> numpy.sum(a, axis=0)
array([18, 22, 26])
The inspect.isclass is probably the best solution, and it's really easy to see how it's actually implemented
def isclass(object):
"""Return true if the object is a class.
Class objects provide these attributes:
__doc__ documentation string
__module__ name of module in which this class was defined"""
return isinstance(object, (type, types.ClassType))
As a developer, I use eclipse + sub-eclipse client (Assuming that you are using svn to checkout some development project and you will compile them).
most people don't spend much time with svn operation, and command line is the fastest way to do so.
there is also some nice GUI tools :
or
For me it depends on the component. If you know what you need it to be populated with then you should try to specify exclusively, or multiple types using:
PropTypes.oneOfType
If you want to refer to a React component then you will be looking for
PropTypes.element
Although,
PropTypes.node
describes anything that can be rendered - strings, numbers, elements or an array of these things. If this suits you then this is the way.
With very generic components, who can have many types of children, you can also use the below - though bare in mind that eslint and ts may not be happy with this lack of specificity:
PropTypes.any
This will gather all IPs on the host and filter out loopback/link-local and IPv6. This can also be edited to allow for IPv6 only, or both IPv4 and IPv6, as well as allowing loopback/link-local in IP list.
from socket import getaddrinfo, gethostname
import ipaddress
def get_ip(ip_addr_proto="ipv4", ignore_local_ips=True):
# By default, this method only returns non-local IPv4 Addresses
# To return IPv6 only, call get_ip('ipv6')
# To return both IPv4 and IPv6, call get_ip('both')
# To return local IPs, call get_ip(None, False)
# Can combime options like so get_ip('both', False)
af_inet = 2
if ip_addr_proto == "ipv6":
af_inet = 30
elif ip_addr_proto == "both":
af_inet = 0
system_ip_list = getaddrinfo(gethostname(), None, af_inet, 1, 0)
ip_list = []
for ip in system_ip_list:
ip = ip[4][0]
try:
ipaddress.ip_address(str(ip))
ip_address_valid = True
except ValueError:
ip_address_valid = False
else:
if ipaddress.ip_address(ip).is_loopback and ignore_local_ips or ipaddress.ip_address(ip).is_link_local and ignore_local_ips:
pass
elif ip_address_valid:
ip_list.append(ip)
return ip_list
print(f"Your IP Address is: {get_ip()}")
Returns Your IP Address is: ['192.168.1.118']
If I run get_ip('both', False), it returns
Your IP Address is: ['::1', 'fe80::1', '127.0.0.1', '192.168.1.118', 'fe80::cb9:d2dd:a505:423a']
This Nuget fix worked for me:
https://github.com/NuGet/Home/issues/974#issuecomment-124774650
You have to use .values for arrays. for example say you have dataframe which has a column name ie, test['Name'], you can do
if name in test['Name'].values :
print(name)
for a normal list you dont have to use .values
Not very clear what your issue is, but it sounds like you want something like this:
List<string> printer = new List<string>( new [] { "jupiter", "neptune", "pangea", "mercury", "sonic" } );
if( printer.Exists( p => p.Equals( "jupiter" ) ) )
{
...
}
There are two answers above up-to-now and they are both long (and tl;dr too short IMHO), so I write summary from my experience starting to use new java.time library (applicable as noted in other answers to Java version 8+). ISO 8601 sets standard way to write dates: YYYY-MM-DD
so the format of date-time is only as below (could be 0, 3, 6 or 9 digits for milliseconds) and no formatting string necessary:
import java.time.Instant;
public static void main(String[] args) {
String date="2010-10-02T12:23:23Z";
try {
Instant myDate = Instant.parse(date);
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
I did not need it, but as getting year is in code from the question, then:
it is trickier, cannot be done from Instant
directly, can be done via Calendar
in way of questions Get integer value of the current year in Java and Converting java.time to Calendar but IMHO as format is fixed substring is more simple to use:
myDate.toString().substring(0,4);
There are 2 options to find matching text; string.match
or string.find
.
Both of these perform a regex search on the string to find matches.
string.find()
string.find(subject string, pattern string, optional start position, optional plain flag)
Returns the startIndex
& endIndex
of the substring found.
The plain
flag allows for the pattern to be ignored and intead be interpreted as a literal. Rather than (tiger)
being interpreted as a regex capture group matching for tiger
, it instead looks for (tiger)
within a string.
Going the other way, if you want to regex match but still want literal special characters (such as .()[]+-
etc.), you can escape them with a percentage; %(tiger%)
.
You will likely use this in combination with string.sub
str = "This is some text containing the word tiger."
if string.find(str, "tiger") then
print ("The word tiger was found.")
else
print ("The word tiger was not found.")
end
string.match()
string.match(s, pattern, optional index)
Returns the capture groups found.
str = "This is some text containing the word tiger."
if string.match(str, "tiger") then
print ("The word tiger was found.")
else
print ("The word tiger was not found.")
end
Starting Python 3.8
, the standard library provides the NormalDist
object as part of the statistics
module.
It can be used to get the cumulative distribution function (cdf
- probability that a random sample X will be less than or equal to x) for a given mean (mu
) and standard deviation (sigma
):
from statistics import NormalDist
NormalDist(mu=0, sigma=1).cdf(1.96)
# 0.9750021048517796
Which can be simplified for the standard normal distribution (mu = 0
and sigma = 1
):
NormalDist().cdf(1.96)
# 0.9750021048517796
NormalDist().cdf(-1.96)
# 0.024997895148220428
You also can lead your initial string, which you are going to check for pattern matching, to lower case. And use in your pattern lower case symbols respectively.
There are two commands which will work in this situation,
root>git reset --hard HEAD~1
root>git push -f
For more git commands refer this page
This seems to work fine, even with subdirectories:
find . -type f | xargs ls -ltr | tail -n 1
In case of too many files, refine the find.
first close the simulator, then run these on terminal
npm install
react-native run-ios
HTML code
<div ng-app>
<div ng-controller='ctrl'>
<div ng-class='whatClassIsIt(call.state[0])'>{{call.state[0]}}</div>
<div ng-class='whatClassIsIt(call.state[1])'>{{call.state[1]}}</div>
<div ng-class='whatClassIsIt(call.state[2])'>{{call.state[2]}}</div>
<div ng-class='whatClassIsIt(call.state[3])'>{{call.state[3]}}</div>
<div ng-class='whatClassIsIt(call.state[4])'>{{call.state[4]}}</div>
<div ng-class='whatClassIsIt(call.state[5])'>{{call.state[5]}}</div>
<div ng-class='whatClassIsIt(call.state[6])'>{{call.state[6]}}</div>
<div ng-class='whatClassIsIt(call.state[7])'>{{call.state[7]}}</div>
</div>
JavaScript Code
function ctrl($scope){
$scope.call={state:['second','first','nothing','Never', 'Gonna', 'Give', 'You', 'Up']}
$scope.whatClassIsIt= function(someValue){
if(someValue=="first")
return "ClassA"
else if(someValue=="second")
return "ClassB";
else
return "ClassC";
}
}